SXF/FC 450 16-18 Exhaust system

Lynch
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1/24/2018 3:26am Edited Date/Time 1/28/2018 1:48am
Looking for opinions on the different systems that are avaliable for the orange and white siblings, more specifically the following: HGS, Yoshimura, Akrapovic, however thoughts on other brands are also interesting.

Even if you have the opinion that exhaust systems are useless on a 450 please say so and explain your thinking behind it, I am also happy to hear any advice on how to make the bike better in other areas.
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Acidreamer
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1/24/2018 4:32am
What exactly are you wanting to know? As far as quality i can say pro circuit, yosh, and akro are all solid from my personal experience. They make the bikes quieter and give some more power. Whether its worth $1000 to you or not is your decision.

As far as making any bike better you start with suspension. $1000 in suspension is better than $1000 elsewhere by far.
MX915
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1/24/2018 4:44am
Listen to Keefer's "Living With" podcast about the KTM. If I recall, there was a pretty detailed comparision between the FMF and Akropovic full system.
Lynch
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1/24/2018 4:44am
Acidreamer wrote:
What exactly are you wanting to know? As far as quality i can say pro circuit, yosh, and akro are all solid from my personal experience...
What exactly are you wanting to know? As far as quality i can say pro circuit, yosh, and akro are all solid from my personal experience. They make the bikes quieter and give some more power. Whether its worth $1000 to you or not is your decision.

As far as making any bike better you start with suspension. $1000 in suspension is better than $1000 elsewhere by far.
How different systems changed the bike, power delivery etc. I can snatch a full akrapovic system for around $600 second hand but I have heard that the stock one is actually better, the tests that are out on the pro circuit looks promising.

Should have stated it in the original post, I have Öhlins suspension so all set there.
Lynch
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1/24/2018 4:56am
MX915 wrote:
Listen to Keefer's "Living With" podcast about the KTM. If I recall, there was a pretty detailed comparision between the FMF and Akropovic full system.
Will do, thank you!

The Shop

Acidreamer
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1/24/2018 5:16am
Acidreamer wrote:
What exactly are you wanting to know? As far as quality i can say pro circuit, yosh, and akro are all solid from my personal experience...
What exactly are you wanting to know? As far as quality i can say pro circuit, yosh, and akro are all solid from my personal experience. They make the bikes quieter and give some more power. Whether its worth $1000 to you or not is your decision.

As far as making any bike better you start with suspension. $1000 in suspension is better than $1000 elsewhere by far.
Lynch wrote:
How different systems changed the bike, power delivery etc. I can snatch a full akrapovic system for around $600 second hand but I have heard that...
How different systems changed the bike, power delivery etc. I can snatch a full akrapovic system for around $600 second hand but I have heard that the stock one is actually better, the tests that are out on the pro circuit looks promising.

Should have stated it in the original post, I have Öhlins suspension so all set there.
Ah. Yea i cant say how different pipes affect your bike specifically. Ive got a PC pipe on my 450 and a yosh on my supersport and had an akrapovic on my old supersport.
Lynch
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1/24/2018 5:23am
Acidreamer wrote:
Ah. Yea i cant say how different pipes affect your bike specifically. Ive got a PC pipe on my 450 and a yosh on my supersport...
Ah. Yea i cant say how different pipes affect your bike specifically. Ive got a PC pipe on my 450 and a yosh on my supersport and had an akrapovic on my old supersport.
That is why I asked for different opinions on the systems for two certain bikes, thanks anyway.
lumpy790
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1/24/2018 7:52am
There is a reason you see so many with FMF systems



Bruce372
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1/24/2018 8:40am
The stock pipe, especially the header takes a lot of beating, even on the dyno.

The only issue with the stock header, it's heavy but a major pain to remove
Lynch
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1/24/2018 10:39am
lumpy790 wrote:
There is a reason you see so many with FMF systems [img]https://p.vitalmx.com/photos/forums/2018/01/24/239998/s1200_E631DB90_6688_4395_920D_ECCA0727A840.jpg[/img]
There is a reason you see so many with FMF systems



Can you please elaborate? To be honest I have not seen a single KTM or husky 450 with the full fmf system, might be more usual in the states.

Good looking bike btw, love the blue.
Bruce372
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1/24/2018 6:12pm
10 hp over stock with std pipe, lol.

Porting, compression and mapping only!
lumpy790
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1/24/2018 7:53pm
lumpy790 wrote:
There is a reason you see so many with FMF systems [img]https://p.vitalmx.com/photos/forums/2018/01/24/239998/s1200_E631DB90_6688_4395_920D_ECCA0727A840.jpg[/img]
There is a reason you see so many with FMF systems



Lynch wrote:
Can you please elaborate? To be honest I have not seen a single KTM or husky 450 with the full fmf system, might be more usual...
Can you please elaborate? To be honest I have not seen a single KTM or husky 450 with the full fmf system, might be more usual in the states.

Good looking bike btw, love the blue.
I personally have relied on FMF for many years because of the type of power they produce. But ...All the pipes have plus’s.

FMF is part of the major stand out KTM backed teams because the product works. Some of the Factory editions come stock with FMF.









Motofinne
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1/25/2018 1:02am Edited Date/Time 1/25/2018 1:09am
I had FMF and HGS on my old 2014 SXF 450 and the HGS was better in my opinion. So i got a HGS exhaust on my 2017.

The stainless steel version is 250-300€ cheaper than the FMF.

For the other areas i can recommend that you buy a set of 22-24mm adjustable Xtrig ROCS clamps. The 24mm offset makes the bike a bit more stable(22 is stock).
Acidreamer
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1/25/2018 3:24am
Bruce372 wrote:
[img]https://p.vitalmx.com/photos/forums/2018/01/24/240092/s1200_Screenshot_20180118_153746.jpg[/img]


Im not sure i believe this dude gained 10hp from a remap lmao. Especially on a stock engine package.
Premix
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1/25/2018 4:13am
Acidreamer wrote:
Im not sure i believe this dude gained 10hp from a remap lmao. Especially on a stock engine package.
You obviously don’t know who Tom Zont is.....
1
Lynch
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1/25/2018 6:23am
Motofinne wrote:
I had FMF and HGS on my old 2014 SXF 450 and the HGS was better in my opinion. So i got a HGS exhaust on...
I had FMF and HGS on my old 2014 SXF 450 and the HGS was better in my opinion. So i got a HGS exhaust on my 2017.

The stainless steel version is 250-300€ cheaper than the FMF.

For the other areas i can recommend that you buy a set of 22-24mm adjustable Xtrig ROCS clamps. The 24mm offset makes the bike a bit more stable(22 is stock).
Thank you for the suggestion, I have looked into the ROCS for a while now. Will most likely buy it if I can fit i into my budget on the build (will go up on the forums hopefully).
lumpy790
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1/25/2018 8:40am
sorry I just noticed that you were in Sweden. That changes things.
Bruce372
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1/25/2018 9:42am
Acidreamer wrote:
Im not sure i believe this dude gained 10hp from a remap lmao. Especially on a stock engine package.
you need to work on your reading skills dude.

this engine is setup for higher altitude, mega compression and porting and the mapping to make it work.
1/26/2018 10:00pm
Bruce372 wrote:
[img]https://p.vitalmx.com/photos/forums/2018/01/24/240092/s1200_Screenshot_20180118_153746.jpg[/img]


Acidreamer wrote:
Im not sure i believe this dude gained 10hp from a remap lmao. Especially on a stock engine package.
Was it running on nitrous?

Pit Row

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Bruce372
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1/27/2018 7:55pm
Bruce372 wrote:
[img]https://p.vitalmx.com/photos/forums/2018/01/24/240092/s1200_Screenshot_20180118_153746.jpg[/img]


Acidreamer wrote:
Im not sure i believe this dude gained 10hp from a remap lmao. Especially on a stock engine package.
Was it running on nitrous?
No, but it just got a x games medal.
1/28/2018 1:48am
Acidreamer wrote:
Im not sure i believe this dude gained 10hp from a remap lmao. Especially on a stock engine package.
Was it running on nitrous?
Bruce372 wrote:
No, but it just got a x games medal.
Thats unreal, I need to know more about this.

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