New CUO vs vortex

cwel11
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So curious if anyone has compared the new connectivity unit with stock ecu vs a tuned vortex?  I had the cuo on my fc450 briefly and the app was easy and definitely was nice to change engine settings. For roughly $250 it’s definitely worth it and I liked it. However after getting rid of the 450 and the cuo on it I’m back to a 350. I’m getting my old XPR vortex remapped for the new gen 350. I was told by XPR the cuo cannot be used in conjunction with the vortex so it sounds like it’s pick one or the other. I may pull the trigger on a cuo unit to test with the stock ecu vs the vortex but it sure seems like the price point and ease of quickly using an app vs the investment of a tuned vortex ($1000) may be the better direction to go. Anyone had any experience or testing back to back? 

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FGR01
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11/24/2024 7:00am

I'm kind of in the same boat here.   Have a 25 FC350.  I'm pretty happy with the stock ECU but since I have an XPR vortex on my 2020 FC350 I know how much better it can be.  I could just get that vortex remapped for the new bike but I don't want to lose the QS and LM features of the new handlebar switch.  To add to the decision making, I have some contingency in my account and could easily get the CUO from the dealer.. haaa.   I was hoping XPR's black friday sale was going to be something significant for the Husky Vortex, but it does not appear to be.

cwel11
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11/24/2024 3:40pm
FGR01 wrote:
I'm kind of in the same boat here.   Have a 25 FC350.  I'm pretty happy with the stock ECU but since I have an XPR...

I'm kind of in the same boat here.   Have a 25 FC350.  I'm pretty happy with the stock ECU but since I have an XPR vortex on my 2020 FC350 I know how much better it can be.  I could just get that vortex remapped for the new bike but I don't want to lose the QS and LM features of the new handlebar switch.  To add to the decision making, I have some contingency in my account and could easily get the CUO from the dealer.. haaa.   I was hoping XPR's black friday sale was going to be something significant for the Husky Vortex, but it does not appear to be.

Well I’ll let you know as soon as I get it back and in. It has shipped back. Should have it this week but the weather kinda sucks now. If I were you and had contingency I’d spring for the cuo first. It’s pretty cool. Also on a side note 25 FC350 is 👌🏻. First ride today and wow it’s better than my 22 in every facet. 

FGR01
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11/24/2024 5:09pm
FGR01 wrote:
I'm kind of in the same boat here.   Have a 25 FC350.  I'm pretty happy with the stock ECU but since I have an XPR...

I'm kind of in the same boat here.   Have a 25 FC350.  I'm pretty happy with the stock ECU but since I have an XPR vortex on my 2020 FC350 I know how much better it can be.  I could just get that vortex remapped for the new bike but I don't want to lose the QS and LM features of the new handlebar switch.  To add to the decision making, I have some contingency in my account and could easily get the CUO from the dealer.. haaa.   I was hoping XPR's black friday sale was going to be something significant for the Husky Vortex, but it does not appear to be.

cwel11 wrote:
Well I’ll let you know as soon as I get it back and in. It has shipped back. Should have it this week but the weather...

Well I’ll let you know as soon as I get it back and in. It has shipped back. Should have it this week but the weather kinda sucks now. If I were you and had contingency I’d spring for the cuo first. It’s pretty cool. Also on a side note 25 FC350 is 👌🏻. First ride today and wow it’s better than my 22 in every facet. 

Cool.  Looking forward to Vortex report.   I'm liking the 25.   I thought I was going to dislike the short suspension (my 2021 TC125 I converted to full length).. and also thought I'd be wanting 6500's since I have those on my 2023 MC300.  But so far, I am actually really liking the bike all stock.  It doesn't really feel small/low like my 2021 TC125 did.   When I got it, the 2025 manuals were not online yet so I just set the suspension to the 2024 settings and set my sag and have been happy for 14 hrs now.  I seem to have settled at 160 psi and it's really nice.  (I'm 182 lbs)

 

cwel11
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11/25/2024 3:07am
FGR01 wrote:
I'm kind of in the same boat here.   Have a 25 FC350.  I'm pretty happy with the stock ECU but since I have an XPR...

I'm kind of in the same boat here.   Have a 25 FC350.  I'm pretty happy with the stock ECU but since I have an XPR vortex on my 2020 FC350 I know how much better it can be.  I could just get that vortex remapped for the new bike but I don't want to lose the QS and LM features of the new handlebar switch.  To add to the decision making, I have some contingency in my account and could easily get the CUO from the dealer.. haaa.   I was hoping XPR's black friday sale was going to be something significant for the Husky Vortex, but it does not appear to be.

cwel11 wrote:
Well I’ll let you know as soon as I get it back and in. It has shipped back. Should have it this week but the weather...

Well I’ll let you know as soon as I get it back and in. It has shipped back. Should have it this week but the weather kinda sucks now. If I were you and had contingency I’d spring for the cuo first. It’s pretty cool. Also on a side note 25 FC350 is 👌🏻. First ride today and wow it’s better than my 22 in every facet. 

FGR01 wrote:
Cool.  Looking forward to Vortex report.   I'm liking the 25.   I thought I was going to dislike the short suspension (my 2021 TC125 I...

Cool.  Looking forward to Vortex report.   I'm liking the 25.   I thought I was going to dislike the short suspension (my 2021 TC125 I converted to full length).. and also thought I'd be wanting 6500's since I have those on my 2023 MC300.  But so far, I am actually really liking the bike all stock.  It doesn't really feel small/low like my 2021 TC125 did.   When I got it, the 2025 manuals were not online yet so I just set the suspension to the 2024 settings and set my sag and have been happy for 14 hrs now.  I seem to have settled at 160 psi and it's really nice.  (I'm 182 lbs)

 

Yeah wondering how long it’ll take them to get the new manuals up. They really should have them available for a bike that’s been available this long. I’m running 145psi @ 185lbs no gear and looking at dust /dirt marks on the forks I’m close but next ride out will do the zip tie test to make sure of my air pressure. I switched from a 22 FC to the 23 MC for the higher chassis but really am more comfy on the lower Husky again. 

The Shop

FGR01
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cwel11 wrote:
Yeah wondering how long it’ll take them to get the new manuals up. They really should have them available for a bike that’s been available this...

Yeah wondering how long it’ll take them to get the new manuals up. They really should have them available for a bike that’s been available this long. I’m running 145psi @ 185lbs no gear and looking at dust /dirt marks on the forks I’m close but next ride out will do the zip tie test to make sure of my air pressure. I switched from a 22 FC to the 23 MC for the higher chassis but really am more comfy on the lower Husky again. 

I started at 155 psi and was getting a little bit too far on the red indicators.  About 3/4" to 1" left.   160 seems pretty good.   I have no idea how you are doing 145.   Are you close to stock clicker settings?  The bike came delivered at 11c/18r and the 2024 manual says 12c/18r.  I've been staying at 18r and anywhere from 10-12 on comp.   To be fair, the track I usually ride has some pretty big jumps and the dirt is pretty firm with not a lot of give in it.  That might be a factor in me wanting it stiffer.

wrc777
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cwel11 wrote:
Well I’ll let you know as soon as I get it back and in. It has shipped back. Should have it this week but the weather...

Well I’ll let you know as soon as I get it back and in. It has shipped back. Should have it this week but the weather kinda sucks now. If I were you and had contingency I’d spring for the cuo first. It’s pretty cool. Also on a side note 25 FC350 is 👌🏻. First ride today and wow it’s better than my 22 in every facet. 

FGR01 wrote:
Cool.  Looking forward to Vortex report.   I'm liking the 25.   I thought I was going to dislike the short suspension (my 2021 TC125 I...

Cool.  Looking forward to Vortex report.   I'm liking the 25.   I thought I was going to dislike the short suspension (my 2021 TC125 I converted to full length).. and also thought I'd be wanting 6500's since I have those on my 2023 MC300.  But so far, I am actually really liking the bike all stock.  It doesn't really feel small/low like my 2021 TC125 did.   When I got it, the 2025 manuals were not online yet so I just set the suspension to the 2024 settings and set my sag and have been happy for 14 hrs now.  I seem to have settled at 160 psi and it's really nice.  (I'm 182 lbs)

 

cwel11 wrote:
Yeah wondering how long it’ll take them to get the new manuals up. They really should have them available for a bike that’s been available this...

Yeah wondering how long it’ll take them to get the new manuals up. They really should have them available for a bike that’s been available this long. I’m running 145psi @ 185lbs no gear and looking at dust /dirt marks on the forks I’m close but next ride out will do the zip tie test to make sure of my air pressure. I switched from a 22 FC to the 23 MC for the higher chassis but really am more comfy on the lower Husky again. 

2025 KTM manuals have been out for months. I bet the fork air pressure setting is the same between KTM/Husky. I don't get why the Husky and Gasgas manuals are not out yet. You might be able to find the service manual on ebay for your bike. It might have the settings in it.

cwel11
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11/25/2024 9:22am
cwel11 wrote:
Yeah wondering how long it’ll take them to get the new manuals up. They really should have them available for a bike that’s been available this...

Yeah wondering how long it’ll take them to get the new manuals up. They really should have them available for a bike that’s been available this long. I’m running 145psi @ 185lbs no gear and looking at dust /dirt marks on the forks I’m close but next ride out will do the zip tie test to make sure of my air pressure. I switched from a 22 FC to the 23 MC for the higher chassis but really am more comfy on the lower Husky again. 

FGR01 wrote:
I started at 155 psi and was getting a little bit too far on the red indicators.  About 3/4" to 1" left.   160 seems pretty...

I started at 155 psi and was getting a little bit too far on the red indicators.  About 3/4" to 1" left.   160 seems pretty good.   I have no idea how you are doing 145.   Are you close to stock clicker settings?  The bike came delivered at 11c/18r and the 2024 manual says 12c/18r.  I've been staying at 18r and anywhere from 10-12 on comp.   To be fair, the track I usually ride has some pretty big jumps and the dirt is pretty firm with not a lot of give in it.  That might be a factor in me wanting it stiffer.

45+ Vet B rider might be the difference? I’m still hitting most jumps unless they’re out of my comfort zone. Stock clickers so far. I’ve ran around 145 on almost all my air forks. 

FGR01
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wrc777 wrote:
2025 KTM manuals have been out for months. I bet the fork air pressure setting is the same between KTM/Husky. I don't get why the Husky...

2025 KTM manuals have been out for months. I bet the fork air pressure setting is the same between KTM/Husky. I don't get why the Husky and Gasgas manuals are not out yet. You might be able to find the service manual on ebay for your bike. It might have the settings in it.

The bike has the base settings sticker on the fork, which matches the 2024 manual, for the 350 anyway.  My sticker was turned to the back so it was unreadable unless you rotated the fork leg.  10.4 bar is 150.8 psi.

image 767.png?VersionId=hsWqtqw7Px7BwV3IDVSMY9Urz8qo0

 

ecavaliere
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11/25/2024 5:16pm

It looks like Twisted Development is able to remap OEM ecu’s for the 2025 350, does anyone have any experience going this route vs a Vortex? Also - if getting an OEM remap can you still use the CUO unit and also map switch with TC and QS??

cwel11
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11/26/2024 3:29am
wrc777 wrote:
2025 KTM manuals have been out for months. I bet the fork air pressure setting is the same between KTM/Husky. I don't get why the Husky...

2025 KTM manuals have been out for months. I bet the fork air pressure setting is the same between KTM/Husky. I don't get why the Husky and Gasgas manuals are not out yet. You might be able to find the service manual on ebay for your bike. It might have the settings in it.

FGR01 wrote:
The bike has the base settings sticker on the fork, which matches the 2024 manual, for the 350 anyway.  My sticker was turned to the back...

The bike has the base settings sticker on the fork, which matches the 2024 manual, for the 350 anyway.  My sticker was turned to the back so it was unreadable unless you rotated the fork leg.  10.4 bar is 150.8 psi.

image 767.png?VersionId=hsWqtqw7Px7BwV3IDVSMY9Urz8qo0

 

Yeah saw those. Pretty much unchanged over the years. So for what it’s worth I suppose air pressure comes down to not only weight but riding ability. I generally use MXA test settings to get close then go from there. Next time the weather allows I’m gonna do the zip ty around the fork leg and verify travel. What’s crazy to me is the 25 bike is heavier than my 23 GG but feels so much lighter when riding? Love that. 

FGR01
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cwel11 wrote:
Yeah saw those. Pretty much unchanged over the years. So for what it’s worth I suppose air pressure comes down to not only weight but riding...

Yeah saw those. Pretty much unchanged over the years. So for what it’s worth I suppose air pressure comes down to not only weight but riding ability. I generally use MXA test settings to get close then go from there. Next time the weather allows I’m gonna do the zip ty around the fork leg and verify travel. What’s crazy to me is the 25 bike is heavier than my 23 GG but feels so much lighter when riding? Love that. 

And also personal preference.  One of the great things about the air forks is being able to easily try drastically different spring rates and just as easily switch back if it doesn't work.  Why are you having to use a zip ty?  Don't your forks have the oem red indicator rings?  I pull the red rings up about 4" before almost every moto so I can monitor across different days and conditions how much travel I am using.  The new bike does feel pretty light.  Maybe it's the stiff frame or quick handling?

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AssangeMX
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11/29/2024 5:04am

If anyone in norcal wants a cuo, i got mine mainly for litpro, and ended up getting the racebox GPS.

More than happy to sell the cuo cheap,  just don't wanna ship it 

Cheddar
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12/1/2024 1:56pm Edited Date/Time 12/1/2024 1:59pm
cwel11 wrote:
Yeah wondering how long it’ll take them to get the new manuals up. They really should have them available for a bike that’s been available this...

Yeah wondering how long it’ll take them to get the new manuals up. They really should have them available for a bike that’s been available this long. I’m running 145psi @ 185lbs no gear and looking at dust /dirt marks on the forks I’m close but next ride out will do the zip tie test to make sure of my air pressure. I switched from a 22 FC to the 23 MC for the higher chassis but really am more comfy on the lower Husky again. 

FGR01 wrote:
I started at 155 psi and was getting a little bit too far on the red indicators.  About 3/4" to 1" left.   160 seems pretty...

I started at 155 psi and was getting a little bit too far on the red indicators.  About 3/4" to 1" left.   160 seems pretty good.   I have no idea how you are doing 145.   Are you close to stock clicker settings?  The bike came delivered at 11c/18r and the 2024 manual says 12c/18r.  I've been staying at 18r and anywhere from 10-12 on comp.   To be fair, the track I usually ride has some pretty big jumps and the dirt is pretty firm with not a lot of give in it.  That might be a factor in me wanting it stiffer.

cwel11 wrote:
45+ Vet B rider might be the difference? I’m still hitting most jumps unless they’re out of my comfort zone. Stock clickers so far. I’ve ran...

45+ Vet B rider might be the difference? I’m still hitting most jumps unless they’re out of my comfort zone. Stock clickers so far. I’ve ran around 145 on almost all my air forks. 

145psi for me as well.  40+ Vet B.  165lbs. Southeast, so mostly soft terrain.  I don’t read into all the reviews and media stuff too much.  Get the zip tie on and track your travel.  All the mags bark about stiff frames and air fork disdain ….i don’t really think it translates across the country the same.  Set ups and bike characteristics will be different. 


 As for the OP, does the CUO deliver the same gain in power that you will get from a tuned vortex?  I assume not….

cwel11
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12/1/2024 4:23pm
FGR01 wrote:
I started at 155 psi and was getting a little bit too far on the red indicators.  About 3/4" to 1" left.   160 seems pretty...

I started at 155 psi and was getting a little bit too far on the red indicators.  About 3/4" to 1" left.   160 seems pretty good.   I have no idea how you are doing 145.   Are you close to stock clicker settings?  The bike came delivered at 11c/18r and the 2024 manual says 12c/18r.  I've been staying at 18r and anywhere from 10-12 on comp.   To be fair, the track I usually ride has some pretty big jumps and the dirt is pretty firm with not a lot of give in it.  That might be a factor in me wanting it stiffer.

cwel11 wrote:
45+ Vet B rider might be the difference? I’m still hitting most jumps unless they’re out of my comfort zone. Stock clickers so far. I’ve ran...

45+ Vet B rider might be the difference? I’m still hitting most jumps unless they’re out of my comfort zone. Stock clickers so far. I’ve ran around 145 on almost all my air forks. 

Cheddar wrote:
145psi for me as well.  40+ Vet B.  165lbs. Southeast, so mostly soft terrain.  I don’t read into all the reviews and media stuff too much...

145psi for me as well.  40+ Vet B.  165lbs. Southeast, so mostly soft terrain.  I don’t read into all the reviews and media stuff too much.  Get the zip tie on and track your travel.  All the mags bark about stiff frames and air fork disdain ….i don’t really think it translates across the country the same.  Set ups and bike characteristics will be different. 


 As for the OP, does the CUO deliver the same gain in power that you will get from a tuned vortex?  I assume not….

Now have both the cuo and XPR tuned vortex and will compare the two. However Mother Nature decided our riding season is on hold here in the northeast. Might be a bit until I get to test them against each other. 

cwel11
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12/4/2024 3:09am

Curious if anyone knows if you hook up the cuo, change settings, and remove the cuo unit, will it revert to stock or stay in the last setting it was in? 

erik_94COBRA
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3/5/2025 9:44am
cwel11 wrote:
45+ Vet B rider might be the difference? I’m still hitting most jumps unless they’re out of my comfort zone. Stock clickers so far. I’ve ran...

45+ Vet B rider might be the difference? I’m still hitting most jumps unless they’re out of my comfort zone. Stock clickers so far. I’ve ran around 145 on almost all my air forks. 

Cheddar wrote:
145psi for me as well.  40+ Vet B.  165lbs. Southeast, so mostly soft terrain.  I don’t read into all the reviews and media stuff too much...

145psi for me as well.  40+ Vet B.  165lbs. Southeast, so mostly soft terrain.  I don’t read into all the reviews and media stuff too much.  Get the zip tie on and track your travel.  All the mags bark about stiff frames and air fork disdain ….i don’t really think it translates across the country the same.  Set ups and bike characteristics will be different. 


 As for the OP, does the CUO deliver the same gain in power that you will get from a tuned vortex?  I assume not….

cwel11 wrote:
Now have both the cuo and XPR tuned vortex and will compare the two. However Mother Nature decided our riding season is on hold here in...

Now have both the cuo and XPR tuned vortex and will compare the two. However Mother Nature decided our riding season is on hold here in the northeast. Might be a bit until I get to test them against each other. 

Any update on the CUO vs XPR Vortex?

AssangeMX
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3/5/2025 2:16pm
AssangeMX wrote:
If anyone in norcal wants a cuo, i got mine mainly for litpro, and ended up getting the racebox GPS.More than happy to sell the cuo...

If anyone in norcal wants a cuo, i got mine mainly for litpro, and ended up getting the racebox GPS.

More than happy to sell the cuo cheap,  just don't wanna ship it 

Still got it...

cwel11
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3/6/2025 2:54am Edited Date/Time 3/6/2025 2:55am
Cheddar wrote:
145psi for me as well.  40+ Vet B.  165lbs. Southeast, so mostly soft terrain.  I don’t read into all the reviews and media stuff too much...

145psi for me as well.  40+ Vet B.  165lbs. Southeast, so mostly soft terrain.  I don’t read into all the reviews and media stuff too much.  Get the zip tie on and track your travel.  All the mags bark about stiff frames and air fork disdain ….i don’t really think it translates across the country the same.  Set ups and bike characteristics will be different. 


 As for the OP, does the CUO deliver the same gain in power that you will get from a tuned vortex?  I assume not….

cwel11 wrote:
Now have both the cuo and XPR tuned vortex and will compare the two. However Mother Nature decided our riding season is on hold here in...

Now have both the cuo and XPR tuned vortex and will compare the two. However Mother Nature decided our riding season is on hold here in the northeast. Might be a bit until I get to test them against each other. 

Any update on the CUO vs XPR Vortex?

For me I’m a set it and forget it guy so I’ve just been letting the vortex on the bike and run it. I already had the vortex from a previous gen ktm so I just had it reflashed by XPR. My kid has the CUO on his gg 250. He doesn’t have much time on it but has played around a bit with it and likes the adjustability. The weather has been holding us up here from more testing unfortunately. I think if you were starting from scratch the cuo is definitely a more cost effective way to adjust your bike feel than a new ecu. Plus the bonus of litpro if you’re willing to buy the subscription plan. 

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no_fun
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3/21/2025 4:17am Edited Date/Time 3/21/2025 4:19am

@cwel11 Could you share any updates on this? Maybe a review of the XPR maps on the 350? I'm in the same boat now. $200ish CUO vs $400ish reflash.

I just want to reduce engine braking as much as possible. I don't need race fuel mapping. I'm starting to lean towards the CUO and selling the Vortex. 

cwel11
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3/22/2025 3:12am Edited Date/Time 3/22/2025 3:13am
no_fun wrote:
@cwel11 Could you share any updates on this? Maybe a review of the XPR maps on the 350? I'm in the same boat now. $200ish CUO...

@cwel11 Could you share any updates on this? Maybe a review of the XPR maps on the 350? I'm in the same boat now. $200ish CUO vs $400ish reflash.

I just want to reduce engine braking as much as possible. I don't need race fuel mapping. I'm starting to lean towards the CUO and selling the Vortex. 

More focused on my kid this season so I’ve been riding less unfortunately. I’ve left the Vortex in the “best overall power” setting so far the couple times I have gotten out. It’s similar to my vortex on my 22. Smooth power delivery, reduced engine braking, etc. No complaints. That being said if I had it to do over again I’d buy the CUO for two reasons. One is you can screw with it at the track on your phone. No taking the seat off and getting a little screwdriver to turn a dial to a different map a piece of paper lists. So a bit easier imo. And you can visually see how much you’re changing your settings (engine braking included) Second is price. You’ve got the Vortex so you’re ahead but still $400 for a flash plus shipping one way. Shop around, buy a CUO at the best price, try it. If you hate it sell it and get a flash. 

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slow-roller
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5/8/2025 10:39am Edited Date/Time 5/8/2025 10:40am

Wanted to try to add some quality to this thread and share some personal feedback.

 

I just put an XPR vortex on my '22 350 SXF and had I known it would make this much improvement I would have done WAY sooner. Smoother power delivery, MORE power from bottom to top, pulls a higher gear without falling on it's face. 3rd literally feels like 2nd now in slower corners. Truly an AMAZING improvement in all regards.

 

Alternatively, we put an XPR or Twisted (can't recall for certain which) on my buddy's 2024 350 SXF and tbh couldn't even tell a difference besides it having slightly less of a flame out issue. 

 

What I've concluded is that the 23+ bikes have a much better map from factory and leaves less to be improved upon. 

 

You'll notice this fella agrees also and was very disappointed; even after sending back for a re-map and trying 2x. https://www.youtube.com/watch?v=kvtpZOFZ3pM

 

We are still going to try out some of the other maps on my buddy's '24 and hope for some improvement. For me, on my 2022, the "best overall map" was my favorite.

PRM31
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9/29/2025 10:48am

Can anyone chime in on the reduction of engine breaking on 23+ 350s? I have a '24 KTM 350 SXF and would like to dial the EB down. If the CUO does a decent job with that alone I'd be satisfied. 

dansfx
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9/29/2025 4:54pm
PRM31 wrote:
Can anyone chime in on the reduction of engine breaking on 23+ 350s? I have a '24 KTM 350 SXF and would like to dial the...

Can anyone chime in on the reduction of engine breaking on 23+ 350s? I have a '24 KTM 350 SXF and would like to dial the EB down. If the CUO does a decent job with that alone I'd be satisfied. 

The CUO allows you to adjust the engine braking from 1-5 with 3 being the factory setting. I usually run mine on 1 or 2 depending on the track and it’s a very noticeable difference. 

1
MX558
Posts
1969
Joined
4/1/2008
Location
US
10/6/2025 7:13pm

Ive had a votex mapped from both the big names and wasnt impressed much over a remap of stock ecu , especially for the price 

Rider 5280
Posts
2392
Joined
11/9/2011
Location
Denver Metro, CO US
10/6/2025 10:39pm Edited Date/Time 10/6/2025 10:40pm

First off, no experience w/ KTM's CUO.

------------------------------------------------------------------------------

Second, my experience is different than MX558's.

I was ready to sell both of my 2022 KTMs due to "lack of power" & "lack of snappiness & sluggishness" --- a 350SX-F and 450 SX-F with OEM motors with stock ECUs.

First I tried the remapped stock ECUs (TZR Racing and Twisted Development) and those convinced me that there was power to be unleashed --- the remapped stock ECUs were VERY good --- so I didn't give up, they truly they were quite excellent, so I decided to go full Vortex.

When I went full Vortex (both by Twisted Development) my personal breakthroughs came from adjusting the fuel trim switches. THAT was the critical step to finally tapping into the additional power and the feel I wanted.

Your mileage may vary.



 

cwel11
Posts
2624
Joined
12/4/2019
Location
Orangeville, PA US
10/7/2025 2:42am
Rider 5280 wrote:
First off, no experience w/ KTM's CUO.------------------------------------------------------------------------------Second, my experience is different than MX558's.I was ready to sell both of my 2022 KTMs due to "lack of...

First off, no experience w/ KTM's CUO.

------------------------------------------------------------------------------

Second, my experience is different than MX558's.

I was ready to sell both of my 2022 KTMs due to "lack of power" & "lack of snappiness & sluggishness" --- a 350SX-F and 450 SX-F with OEM motors with stock ECUs.

First I tried the remapped stock ECUs (TZR Racing and Twisted Development) and those convinced me that there was power to be unleashed --- the remapped stock ECUs were VERY good --- so I didn't give up, they truly they were quite excellent, so I decided to go full Vortex.

When I went full Vortex (both by Twisted Development) my personal breakthroughs came from adjusting the fuel trim switches. THAT was the critical step to finally tapping into the additional power and the feel I wanted.

Your mileage may vary.



 

Having the same bike in a red version two years ago I agree with you the vortex was a must. Woke the bike up and made the power delivery better everywhere. That being said on my 25 Husky I definitely feel they got it right with the stock ECU. I tried a mapped vortex from XPR and while it was good, I prefer the stock ECU and adjustability of the new CUO units. 

Smith246
Posts
423
Joined
1/21/2024
Location
Jerramungup , WA AU
10/7/2025 7:04am

Has anyone tried a vortex and dual injector kit on a 23+ 350? I'm about to bite the bullet and try one. I've had a vortex mapped by xpr on my 22 350sxf and wasn't overly impressed. Hoping the dual injector kit is a very noticeable improvement.

Rider 5280
Posts
2392
Joined
11/9/2011
Location
Denver Metro, CO US
10/7/2025 8:16am Edited Date/Time 10/7/2025 9:12am
Rider 5280 wrote:
First off, no experience w/ KTM's CUO.------------------------------------------------------------------------------Second, my experience is different than MX558's.I was ready to sell both of my 2022 KTMs due to "lack of...

First off, no experience w/ KTM's CUO.

------------------------------------------------------------------------------

Second, my experience is different than MX558's.

I was ready to sell both of my 2022 KTMs due to "lack of power" & "lack of snappiness & sluggishness" --- a 350SX-F and 450 SX-F with OEM motors with stock ECUs.

First I tried the remapped stock ECUs (TZR Racing and Twisted Development) and those convinced me that there was power to be unleashed --- the remapped stock ECUs were VERY good --- so I didn't give up, they truly they were quite excellent, so I decided to go full Vortex.

When I went full Vortex (both by Twisted Development) my personal breakthroughs came from adjusting the fuel trim switches. THAT was the critical step to finally tapping into the additional power and the feel I wanted.

Your mileage may vary.



 

cwel11 wrote:
Having the same bike in a red version two years ago I agree with you the vortex was a must. Woke the bike up and made...

Having the same bike in a red version two years ago I agree with you the vortex was a must. Woke the bike up and made the power delivery better everywhere. That being said on my 25 Husky I definitely feel they got it right with the stock ECU. I tried a mapped vortex from XPR and while it was good, I prefer the stock ECU and adjustability of the new CUO units. 

This is good to know (thanks!) and pretty darn cool how far the manufacturers have come ---> Hopefully the stock ECUs & tuning apps get better & better and obsolete the Vortex path for 80%+ of users (I think Vortex ECUs are still needed or max performance).

Ideal situations (to me):
(1) OEMs continue to mature stock ECUs/tuning apps --- have already come so far! The features & usability have becoming exponentially better in just the past few years, love where this is going.
(2) Vortex needs to offer a tuning app at soonest that not only adjusts maps, fuel trim switches, etc., but also specific ride characteristics like engine braking, low-end grunt, high-end rev out, etc. They're behind here and there's really no excuse this far into the game.
 

10/7/2025 9:12am
Smith246 wrote:
Has anyone tried a vortex and dual injector kit on a 23+ 350? I'm about to bite the bullet and try one. I've had a vortex...

Has anyone tried a vortex and dual injector kit on a 23+ 350? I'm about to bite the bullet and try one. I've had a vortex mapped by xpr on my 22 350sxf and wasn't overly impressed. Hoping the dual injector kit is a very noticeable improvement.

I did the dual injector on my 2025 350 and love it. The bike is just better all around and just seems even easier to ride. I had the CUO prior and its night and day difference. Really cleans up the decel pop on the bike as well. Super easy installation took maybe 30 minutes of me just goofing off and making sure it was installed correctly. 

1
Rider 5280
Posts
2392
Joined
11/9/2011
Location
Denver Metro, CO US
10/7/2025 9:16am
Smith246 wrote:
Has anyone tried a vortex and dual injector kit on a 23+ 350? I'm about to bite the bullet and try one. I've had a vortex...

Has anyone tried a vortex and dual injector kit on a 23+ 350? I'm about to bite the bullet and try one. I've had a vortex mapped by xpr on my 22 350sxf and wasn't overly impressed. Hoping the dual injector kit is a very noticeable improvement.

I did the dual injector on my 2025 350 and love it. The bike is just better all around and just seems even easier to ride...

I did the dual injector on my 2025 350 and love it. The bike is just better all around and just seems even easier to ride. I had the CUO prior and its night and day difference. Really cleans up the decel pop on the bike as well. Super easy installation took maybe 30 minutes of me just goofing off and making sure it was installed correctly. 

And what was the total cost, all-in?

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