Vortex ECU on 23+ KTM 350SXF

dansfx
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Greenville, NC US
8/22/2025 7:59am
dansfx wrote:
On tight technical stuff like to run the smooth map and drop the throttle response down one click from 3 to 2 to smooth out the...

On tight technical stuff like to run the smooth map and drop the throttle response down one click from 3 to 2 to smooth out the throttle jerkiness. I pretty much have a map for each track that I ride on a normal basis. 

Langhammx wrote:

You’re getting your moneys worth. I wish I would’ve had the patience to just take the time to try them. 

It takes a few minutes of messing around with the app to get familiar with it, but they seemed to have put some effort into making it easy.

3 power levels to choose from:  smooth, standard, aggressive

Then slider bars that go from 1-5 for:  traction control, throttle response, and engine braking.

They also have settings for Quickshift but I haven't messed with that.

Once you play with it for a little while you learn what settings to change for the track you are on.  For instance I like less engine braking on soft tracks and more on hard pack.   

My friend also has it on his bike so we use the Litpro for lap times and stuff like seeing the speeds we are hitting jumps at.  

12/15/2025 6:22am

Hey guys I am reviving this thread. Been riding with the connectivity unit on my 25 350sxf for a while now. I am satisfied with the engine breaking decrease, however, I've now come to realize I would like some more power off the bottom. I like to hit corners in third and really find with this bike its hard if it gets super rutted. 

Anyone here thats gone with a vortex on a 350 (on pump fuel) did it make a huge difference in pulling power off the bottom? 

Mr. Plump
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Location
Lewistown, PA US
12/15/2025 9:55am

I have a 2024 350 with the CUO unit (set to aggressive power mode and minimum engine braking). I rode my buddies bike with a Vortex from Twisted and I did not notice a huge difference off the bottom. On the contrary, it made more of a difference in the mid-range and revving out. The engine revved much more free and generally felt "happier". Also, it had less engine braking than the CUO unit can provide. However, I did not think it was a night and day difference in overall power output, and I definitely did not notice much off the bottom. Was it "better", yes, but not enough better to justify $1100, IMO. But I only rode it in one of the provided maps, so it's very possible that one of the other maps would improve bottom end more.

PRM31
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Northern, VA US
Fantasy
12/15/2025 10:13am

Anyone tried the 250 exhaust yet? It's supposed to improve to improve throttle response per Keefer. I have a 250 header, just haven't been able to ride with it yet. 

The Shop

ithinkitsbroke
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The Semi Frozen Tundra, MN US
12/15/2025 11:24am
PRM31 wrote:
Anyone tried the 250 exhaust yet? It's supposed to improve to improve throttle response per Keefer. I have a 250 header, just haven't been able to...

Anyone tried the 250 exhaust yet? It's supposed to improve to improve throttle response per Keefer. I have a 250 header, just haven't been able to ride with it yet. 

Worth it. Did this on my 22' and it was noticeable. One of the better bang for the buck things I've done over the last few years.

2
12/15/2025 11:58am
Mr. Plump wrote:
I have a 2024 350 with the CUO unit (set to aggressive power mode and minimum engine braking). I rode my buddies bike with a Vortex...

I have a 2024 350 with the CUO unit (set to aggressive power mode and minimum engine braking). I rode my buddies bike with a Vortex from Twisted and I did not notice a huge difference off the bottom. On the contrary, it made more of a difference in the mid-range and revving out. The engine revved much more free and generally felt "happier". Also, it had less engine braking than the CUO unit can provide. However, I did not think it was a night and day difference in overall power output, and I definitely did not notice much off the bottom. Was it "better", yes, but not enough better to justify $1100, IMO. But I only rode it in one of the provided maps, so it's very possible that one of the other maps would improve bottom end more.

man thats kind of dissapointing to hear but exactly the type of feedback im looking for. Its a hard question to answer as well because most people will tell you it does make a difference but its hard to tell whether its worth $1200 or not you know. 

1
Smith246
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Jerramungup , WA AU
12/15/2025 3:15pm
Hey guys I am reviving this thread. Been riding with the connectivity unit on my 25 350sxf for a while now. I am satisfied with the...

Hey guys I am reviving this thread. Been riding with the connectivity unit on my 25 350sxf for a while now. I am satisfied with the engine breaking decrease, however, I've now come to realize I would like some more power off the bottom. I like to hit corners in third and really find with this bike its hard if it gets super rutted. 

Anyone here thats gone with a vortex on a 350 (on pump fuel) did it make a huge difference in pulling power off the bottom? 

Just put a vortex on my 25 350 and while it did make a nice difference i wouldn't say it was night and day better. Where I noticed it most was it was alot less jerky on small throttle openings making slow corners a bit better. Maybe felt like it had a little more torque off the bottom but again not a huge difference at all.

Maybe try going to a 53 rear sprocket could possibly help, and alot cheaper than a vortex ha ha. 

2
FGR01
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12/15/2025 4:37pm
Hey guys I am reviving this thread. Been riding with the connectivity unit on my 25 350sxf for a while now. I am satisfied with the...

Hey guys I am reviving this thread. Been riding with the connectivity unit on my 25 350sxf for a while now. I am satisfied with the engine breaking decrease, however, I've now come to realize I would like some more power off the bottom. I like to hit corners in third and really find with this bike its hard if it gets super rutted. 

Anyone here thats gone with a vortex on a 350 (on pump fuel) did it make a huge difference in pulling power off the bottom? 

Smith246 wrote:
Just put a vortex on my 25 350 and while it did make a nice difference i wouldn't say it was night and day better. Where...

Just put a vortex on my 25 350 and while it did make a nice difference i wouldn't say it was night and day better. Where I noticed it most was it was alot less jerky on small throttle openings making slow corners a bit better. Maybe felt like it had a little more torque off the bottom but again not a huge difference at all.

Maybe try going to a 53 rear sprocket could possibly help, and alot cheaper than a vortex ha ha. 

Same here.  The Twisted Vortex might not be a much larger amount of bottom power, but it is much cleaner mapping making 3rd more useable in tight ruts.  Less herky jerky and definitely less prone to flame out (zero flame out actually).   So it's smoother and you don't have to worry as much about covering the clutch or stalling the bike.  A 53 sprocket will definitely make 3rd peppier in corners.

2
cwtoyota
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Tacoma, WA US
12/15/2025 4:42pm Edited Date/Time 12/15/2025 4:56pm
Mr. Plump wrote:
I have a 2024 350 with the CUO unit (set to aggressive power mode and minimum engine braking). I rode my buddies bike with a Vortex...

I have a 2024 350 with the CUO unit (set to aggressive power mode and minimum engine braking). I rode my buddies bike with a Vortex from Twisted and I did not notice a huge difference off the bottom. On the contrary, it made more of a difference in the mid-range and revving out. The engine revved much more free and generally felt "happier". Also, it had less engine braking than the CUO unit can provide. However, I did not think it was a night and day difference in overall power output, and I definitely did not notice much off the bottom. Was it "better", yes, but not enough better to justify $1100, IMO. But I only rode it in one of the provided maps, so it's very possible that one of the other maps would improve bottom end more.

man thats kind of dissapointing to hear but exactly the type of feedback im looking for. Its a hard question to answer as well because most...

man thats kind of dissapointing to hear but exactly the type of feedback im looking for. Its a hard question to answer as well because most people will tell you it does make a difference but its hard to tell whether its worth $1200 or not you know. 

I'm curious if the header from the off-road version of the bike would be longer and if it would provide more bottom end for you guys who want that...
 

I've compared my 2023 GasGas (same as a 2022 generation KTM) with XPR Vortex, 2018 airboot and the 250F muffler (still on the 350 header) against my friend's 2023 KTM 350SX-F with a Twisted Vortex.
My bike feels a little more aggressive through the mid and top, but otherwise both engines are very similar.

The XPR maps include a "Torque map" which makes the bike even more snappy at initial throttle opening.
When I've tried that map, it was too aggressive for my preferences.  I was climbing out of ruts and making more mistakes.

That torque map might be worth it for you guys who want more front-side torque and response.
I would imagine XPR could load that into one of the two slots in the stock ECU...
It's worth asking them if they can do that and if it's still possible to use the connectivity unit.

cwtoyota
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12/15/2025 4:54pm
Hey guys I am reviving this thread. Been riding with the connectivity unit on my 25 350sxf for a while now. I am satisfied with the...

Hey guys I am reviving this thread. Been riding with the connectivity unit on my 25 350sxf for a while now. I am satisfied with the engine breaking decrease, however, I've now come to realize I would like some more power off the bottom. I like to hit corners in third and really find with this bike its hard if it gets super rutted. 

Anyone here thats gone with a vortex on a 350 (on pump fuel) did it make a huge difference in pulling power off the bottom? 

Smith246 wrote:
Just put a vortex on my 25 350 and while it did make a nice difference i wouldn't say it was night and day better. Where...

Just put a vortex on my 25 350 and while it did make a nice difference i wouldn't say it was night and day better. Where I noticed it most was it was alot less jerky on small throttle openings making slow corners a bit better. Maybe felt like it had a little more torque off the bottom but again not a huge difference at all.

Maybe try going to a 53 rear sprocket could possibly help, and alot cheaper than a vortex ha ha. 

FGR01 wrote:
Same here.  The Twisted Vortex might not be a much larger amount of bottom power, but it is much cleaner mapping making 3rd more useable in...

Same here.  The Twisted Vortex might not be a much larger amount of bottom power, but it is much cleaner mapping making 3rd more useable in tight ruts.  Less herky jerky and definitely less prone to flame out (zero flame out actually).   So it's smoother and you don't have to worry as much about covering the clutch or stalling the bike.  A 53 sprocket will definitely make 3rd peppier in corners.

I'm super sensitive to engine braking and the delivery at initial throttle opening.
I think it's because I still ride carbureted two strokes most of the time.

The XPR and the Twisted Vortex ECUs offer a significant improvement in these areas. That helps a ton with consistency through corners.

2
Smith246
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Jerramungup , WA AU
12/15/2025 4:54pm
cwtoyota wrote:
I'm curious if the header from the off-road version of the bike would be longer and if it would provide more bottom end for you guys...

I'm curious if the header from the off-road version of the bike would be longer and if it would provide more bottom end for you guys who want that...
 

I've compared my 2023 GasGas (same as a 2022 generation KTM) with XPR Vortex, 2018 airboot and the 250F muffler (still on the 350 header) against my friend's 2023 KTM 350SX-F with a Twisted Vortex.
My bike feels a little more aggressive through the mid and top, but otherwise both engines are very similar.

The XPR maps include a "Torque map" which makes the bike even more snappy at initial throttle opening.
When I've tried that map, it was too aggressive for my preferences.  I was climbing out of ruts and making more mistakes.

That torque map might be worth it for you guys who want more front-side torque and response.
I would imagine XPR could load that into one of the two slots in the stock ECU...
It's worth asking them if they can do that and if it's still possible to use the connectivity unit.

The torque map was what I used and it definitely made the most difference off the bottom, maybe didn't rev out as far as stock but still plenty good. 

I just have the maps that come from vortex as mine was setup for a dual injector kit but having trouble with that so just running the torque map. 

1
12/15/2025 6:18pm
cwtoyota wrote:
I'm curious if the header from the off-road version of the bike would be longer and if it would provide more bottom end for you guys...

I'm curious if the header from the off-road version of the bike would be longer and if it would provide more bottom end for you guys who want that...
 

I've compared my 2023 GasGas (same as a 2022 generation KTM) with XPR Vortex, 2018 airboot and the 250F muffler (still on the 350 header) against my friend's 2023 KTM 350SX-F with a Twisted Vortex.
My bike feels a little more aggressive through the mid and top, but otherwise both engines are very similar.

The XPR maps include a "Torque map" which makes the bike even more snappy at initial throttle opening.
When I've tried that map, it was too aggressive for my preferences.  I was climbing out of ruts and making more mistakes.

That torque map might be worth it for you guys who want more front-side torque and response.
I would imagine XPR could load that into one of the two slots in the stock ECU...
It's worth asking them if they can do that and if it's still possible to use the connectivity unit.

Smith246 wrote:
The torque map was what I used and it definitely made the most difference off the bottom, maybe didn't rev out as far as stock but...

The torque map was what I used and it definitely made the most difference off the bottom, maybe didn't rev out as far as stock but still plenty good. 

I just have the maps that come from vortex as mine was setup for a dual injector kit but having trouble with that so just running the torque map. 

@Smith246 did XPR map your vortex then? I was wondering about that torque map they offer. 

12/15/2025 6:19pm
Hey guys I am reviving this thread. Been riding with the connectivity unit on my 25 350sxf for a while now. I am satisfied with the...

Hey guys I am reviving this thread. Been riding with the connectivity unit on my 25 350sxf for a while now. I am satisfied with the engine breaking decrease, however, I've now come to realize I would like some more power off the bottom. I like to hit corners in third and really find with this bike its hard if it gets super rutted. 

Anyone here thats gone with a vortex on a 350 (on pump fuel) did it make a huge difference in pulling power off the bottom? 

Smith246 wrote:
Just put a vortex on my 25 350 and while it did make a nice difference i wouldn't say it was night and day better. Where...

Just put a vortex on my 25 350 and while it did make a nice difference i wouldn't say it was night and day better. Where I noticed it most was it was alot less jerky on small throttle openings making slow corners a bit better. Maybe felt like it had a little more torque off the bottom but again not a huge difference at all.

Maybe try going to a 53 rear sprocket could possibly help, and alot cheaper than a vortex ha ha. 

FGR01 wrote:
Same here.  The Twisted Vortex might not be a much larger amount of bottom power, but it is much cleaner mapping making 3rd more useable in...

Same here.  The Twisted Vortex might not be a much larger amount of bottom power, but it is much cleaner mapping making 3rd more useable in tight ruts.  Less herky jerky and definitely less prone to flame out (zero flame out actually).   So it's smoother and you don't have to worry as much about covering the clutch or stalling the bike.  A 53 sprocket will definitely make 3rd peppier in corners.

Yeah this is good insight maybe the combo of the XPR vortex and a bigger sprocket would be good. Would you say its worth the $1200 investment then over the connectivity unit?

dansfx
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Greenville, NC US
12/15/2025 6:36pm

If you’re looking for a little more bottom end consider the XPR exhaust flange. It made a noticeable difference on my ‘23 350 with both throttle response and low end power. 

XPR exhaust flange

3
PRM31
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Northern, VA US
Fantasy
12/15/2025 6:44pm
dansfx wrote:
If you’re looking for a little more bottom end consider the XPR exhaust flange. It made a noticeable difference on my ‘23 350 with both throttle...

If you’re looking for a little more bottom end consider the XPR exhaust flange. It made a noticeable difference on my ‘23 350 with both throttle response and low end power. 

XPR exhaust flange

If the weather cooperates this week, I’ll follow up with how the XPR flange works with a 250 FMF header. 

1
Smith246
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Jerramungup , WA AU
12/15/2025 6:47pm

@Smith246 did XPR map your vortex then? I was wondering about that torque map they offer. 

Hi, no I got mine from a company in Australia with a dual injector kit. It has the original maps that come with the vortex when you buy it direct from vortex but they have put a few of there maps in to work with the dual injector kit. I was having a bit of trouble with the injector kit not running properly so I switched it back to the vortex torque map. 

This map was very good and clean running, i can imagine an xpr torque map would be as good if not better.

FGR01
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AZ US
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12/16/2025 4:36am
Smith246 wrote:
Just put a vortex on my 25 350 and while it did make a nice difference i wouldn't say it was night and day better. Where...

Just put a vortex on my 25 350 and while it did make a nice difference i wouldn't say it was night and day better. Where I noticed it most was it was alot less jerky on small throttle openings making slow corners a bit better. Maybe felt like it had a little more torque off the bottom but again not a huge difference at all.

Maybe try going to a 53 rear sprocket could possibly help, and alot cheaper than a vortex ha ha. 

FGR01 wrote:
Same here.  The Twisted Vortex might not be a much larger amount of bottom power, but it is much cleaner mapping making 3rd more useable in...

Same here.  The Twisted Vortex might not be a much larger amount of bottom power, but it is much cleaner mapping making 3rd more useable in tight ruts.  Less herky jerky and definitely less prone to flame out (zero flame out actually).   So it's smoother and you don't have to worry as much about covering the clutch or stalling the bike.  A 53 sprocket will definitely make 3rd peppier in corners.

cwtoyota wrote:
I'm super sensitive to engine braking and the delivery at initial throttle opening.I think it's because I still ride carbureted two strokes most of the time.The...

I'm super sensitive to engine braking and the delivery at initial throttle opening.
I think it's because I still ride carbureted two strokes most of the time.

The XPR and the Twisted Vortex ECUs offer a significant improvement in these areas. That helps a ton with consistency through corners.

Same here.  Always switching between my 350's and my 150/300 2-strokes.  When it comes to jetting I am much more picky about the pilot/needle and the response and cleanness coming out of corners than anything else.

You are right about the XPR torque map.  I have their Vortex on my 2020 and I use the torque map on tighter tracks.

1
FGR01
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12/16/2025 4:44am
Yeah this is good insight maybe the combo of the XPR vortex and a bigger sprocket would be good. Would you say its worth the $1200...

Yeah this is good insight maybe the combo of the XPR vortex and a bigger sprocket would be good. Would you say its worth the $1200 investment then over the connectivity unit?

Whether or not it's worth it is a personal judgment call.   I did notice XPR has a discount if you sign up on their mailing list and I got my Vortex from Twisted on a Black Friday sale.   It seems there's also people frequently selling Vortex's on this site for much cheaper.

What I like about my 2 Vortex's is no flame out, cleaner mapping/response, ability to select 10 maps easily, and ability to fine tune the fuel in the 3 bands with the adjusters.  Yes, they are both faster and both have higher rpm limit and better overrev, but just the overall smooth/clean running makes a better riding experience.

2
BossWool2800
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Jackson , TX US
12/16/2025 4:58am Edited Date/Time 12/16/2025 5:00am

It’s crazy KTM can’t make a good stock running bike off the showroom, without having to do all this.

4
Smith246
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Jerramungup , WA AU
12/16/2025 5:02am

It’s crazy KTM can’t make a good stock running bike off the showroom, without having to do all this.

My 25 350sxf is the best stock bike I have ever owned and can definitely be kept 100% stock and still be a great bike. I just like buying cool stuff ha ha 

1
Mr. Plump
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12/16/2025 5:24am

It’s crazy KTM can’t make a good stock running bike off the showroom, without having to do all this.

Smith246 wrote:
My 25 350sxf is the best stock bike I have ever owned and can definitely be kept 100% stock and still be a great bike. I...

My 25 350sxf is the best stock bike I have ever owned and can definitely be kept 100% stock and still be a great bike. I just like buying cool stuff ha ha 

I have to agree...my 2024 was great right off the showroom floor, nothing "wrong" with it at all. But anything can be made better! And it's fun to modify and tinker with the bike to make it "perfect".

1
12/16/2025 6:21am Edited Date/Time 12/16/2025 6:23am
Yeah this is good insight maybe the combo of the XPR vortex and a bigger sprocket would be good. Would you say its worth the $1200...

Yeah this is good insight maybe the combo of the XPR vortex and a bigger sprocket would be good. Would you say its worth the $1200 investment then over the connectivity unit?

FGR01 wrote:
Whether or not it's worth it is a personal judgment call.   I did notice XPR has a discount if you sign up on their mailing...

Whether or not it's worth it is a personal judgment call.   I did notice XPR has a discount if you sign up on their mailing list and I got my Vortex from Twisted on a Black Friday sale.   It seems there's also people frequently selling Vortex's on this site for much cheaper.

What I like about my 2 Vortex's is no flame out, cleaner mapping/response, ability to select 10 maps easily, and ability to fine tune the fuel in the 3 bands with the adjusters.  Yes, they are both faster and both have higher rpm limit and better overrev, but just the overall smooth/clean running makes a better riding experience.

got it, tough call to make! Wish I could test one first. 

12/16/2025 6:22am

It’s crazy KTM can’t make a good stock running bike off the showroom, without having to do all this.

Smith246 wrote:
My 25 350sxf is the best stock bike I have ever owned and can definitely be kept 100% stock and still be a great bike. I...

My 25 350sxf is the best stock bike I have ever owned and can definitely be kept 100% stock and still be a great bike. I just like buying cool stuff ha ha 

I told my wife the same thing when I got my 25. I really didn't like the air fork but the overall bike is the best stock bike i've had as well. Turning the idle screw up helped the flame outs but if you go slow enough in a corner or chop the brakes it will stall still probably. 

Smith246
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12/16/2025 6:39am

It’s crazy KTM can’t make a good stock running bike off the showroom, without having to do all this.

Smith246 wrote:
My 25 350sxf is the best stock bike I have ever owned and can definitely be kept 100% stock and still be a great bike. I...

My 25 350sxf is the best stock bike I have ever owned and can definitely be kept 100% stock and still be a great bike. I just like buying cool stuff ha ha 

I told my wife the same thing when I got my 25. I really didn't like the air fork but the overall bike is the best...

I told my wife the same thing when I got my 25. I really didn't like the air fork but the overall bike is the best stock bike i've had as well. Turning the idle screw up helped the flame outs but if you go slow enough in a corner or chop the brakes it will stall still probably. 

Yeah I can live with the air fork but I know it can be better so I went with dal soggios on this one.

I only tried the vortex cos I wanted to try the dual injector kit. I was actually very happy with the stock ecu besides the herky jerky feel it gives when just cruising around. Was never an issue when actually riding around at speed. I've never had any issues with flame out or stalling at all.

PRM31
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12/16/2025 7:25am

It’s crazy KTM can’t make a good stock running bike off the showroom, without having to do all this.

Describing any of these issues as a problem on the track is a stretch. Honestly, with rare exception, the only time I notice the rough low end is when idling across the pits to or from the track. 99% of what is being discussed is guys tinkering with bikes for the fun of it. The 350 SXF is a fantastic bike. That’s my opinion anyway. 

3
12/16/2025 9:19am

It’s crazy KTM can’t make a good stock running bike off the showroom, without having to do all this.

PRM31 wrote:
Describing any of these issues as a problem on the track is a stretch. Honestly, with rare exception, the only time I notice the rough low...

Describing any of these issues as a problem on the track is a stretch. Honestly, with rare exception, the only time I notice the rough low end is when idling across the pits to or from the track. 99% of what is being discussed is guys tinkering with bikes for the fun of it. The 350 SXF is a fantastic bike. That’s my opinion anyway. 

I am curious to your feedback on the 250 header pipe. I am thinking maybe I just get the XPR flange withe 250 header pipe and fmf slip on and maybe that will help the bottom a bit. 

FGR01
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12/16/2025 5:37pm

It’s crazy KTM can’t make a good stock running bike off the showroom, without having to do all this.

PRM31 wrote:
Describing any of these issues as a problem on the track is a stretch. Honestly, with rare exception, the only time I notice the rough low...

Describing any of these issues as a problem on the track is a stretch. Honestly, with rare exception, the only time I notice the rough low end is when idling across the pits to or from the track. 99% of what is being discussed is guys tinkering with bikes for the fun of it. The 350 SXF is a fantastic bike. That’s my opinion anyway. 

My 25 FC350 was somewhat prone to stalling and flameout with the stock ECU.  It was cold blooded and needed to be warmed up pretty long to minimize the stall chances.  It coughed and shut off on the starting line right before the gate dropped once and stalled when I let off for the 2nd turn with the holeshot in another moto.  Definitely increased my desire to buy a Vortex.. lol

1
BossWool2800
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12/16/2025 6:49pm
FGR01 wrote:
My 25 FC350 was somewhat prone to stalling and flameout with the stock ECU.  It was cold blooded and needed to be warmed up pretty long...

My 25 FC350 was somewhat prone to stalling and flameout with the stock ECU.  It was cold blooded and needed to be warmed up pretty long to minimize the stall chances.  It coughed and shut off on the starting line right before the gate dropped once and stalled when I let off for the 2nd turn with the holeshot in another moto.  Definitely increased my desire to buy a Vortex.. lol

Hmm, pretty concerning considering how much these are. 

1
PRM31
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12/19/2025 9:23am

Quick thoughts on the XPR exhaust manifold and a 250 FMF header. Rode on a tight track, with near perfect grip levels. I don’t think adding the header changed the immediate off idle performance. Certainly not worse, but if better, it is minor. However the true low to mid felt very strong to me. Keeping the front tire down became an issue, so much so that I played with the mellower (white) map. I did go back to the green and just learned to manage the throttle better. I did not think to make adjustments via the CUO. The only change I have right now is the minimum engine braking. Next ride I’ll have a couple other maps ready to try. 

1
FGR01
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Fantasy
12/19/2025 9:58am

An additional item for the 23+ 350's....  if you use the white throttle cam from the TBI 2-strokes you will definitely get snappier initial response.  You have to buy the stock OEM grip set to get it.  I tried it on my 350 and it was too much for me.  Too herky jerky.  Would be sketchy late in the race when your arms are pumped and throttle control is waning.  

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