i love FMF born in so cal! i will always support FMF and what there about best exhaust hands down ........period
FMF Factory 4.1 RCT Slip-On Exhaust
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purchased for my 2016 ktm 350 sxf, combo with header and it really opened up the bottom end and mid range power. sounds amazing too.
I was running a yoshi previously and wanted to try something new. Nice quality, easy install (my Yoshi had to be slightly modified), made in the USA, great power gains, and killer looks.... what else can you ask for?!
Fits perfect. Runs great!
This was very easy to install sounds really good can't wait to get the rest of the exhaust
Makes more power across a broad RPM range. Sounds great. I have only ridden with pipe 2x s so its to early to tell on durabuility,but I'm sure it will be as good or better then the other fmf pipes I have had. BEST OF ALL ITS MADE IN THE U.S.A.
The install was easy and as ausual the FMF performance is great .
Put on my sons kx250f. Sound is down right evel. Power is comparable to his older exhaust (aftermarket). For the price, it's a good muffler.
Would definitely recommend this to anyone wanting to
Enhance your performance or looking for a
Pipe that looks good. FMF!!!!
Love the silencer and it's a little smaller than stock.. has a nice sound..
The coupler pipe In-between the header and the muffler was really tight and I had to use a mallet to hammer it on but otherwise I like the system a lot.
This is the sexiest exhaust east of the Mississippi! Best Quality and performance too!
Put this on my 16 kx450f and it woke it up a lot! Worth the money in my opinion and it looks great
Did a lot of mods to get bike running the way I wanted--needed a lot more bottom end power than stock setup. This was by far the best change I made. More power across rev range, but also smooth delivery so power is really usable. I would put this pipe on any bike for sure.
A good gain in low end and this baby barks like a dog!!!!!
I had the bike apart for suspension work and researched the mufflers to bring the stock kawi screech inline with ama requirements. I also wanted a spark arrestor for free riding offroad. This is the only one i could find to meet those needs. I am pleased.
I could really tell a difference from the bottom end up till about mid range with just the slip on. It sounds great and looks great. Highly recommended.
You can feel the weight difference in your hands from stock to this beauty. Power is noticeable instantly. This will probably be the only engine mod I do to my KTM.
Motosport was out of the header and pipe together--on backorder for 4 months! so I had to purchase separate at $50 more. Bummed about that!
Lots more bottom end power with this unit compared to
stock one. Pretty loud without insert installed.
this pipe is awesome. I have had it for 6 months now and it looks and performs awesome. it bolted right on to my bike, I also only got the slip on and had no problems with It and the stock header.
There are a few instances where the FMF muffler will only fit an FMF header, but that's because FMF was not able to get the gains/fit they wanted with out making it an FMF only version. For the most part these are KTMs only.