Please select make, model and year4-Stroke Exhaust
Exhaust systems in either full race or with tuneable spark arrestors and different tips to give you that perfect power output for either motocross or trail riding.
Don in Washington
Just got pipe today arrived in 3 days just like they said. It took less then 30 minutes to install took longer to get old exhaust off then to put new one on. I was worried about the mid-pipe fitting and having gaps and leaks like I had on some of the reviews. Mine fit very well with no leaks and does not stick out past rear grab bar like some have said. so far fit and finish are top notch, Thanks Rocky Mountain for a affordable exhustRead All Reviews
AARON in AL
The fit , finish, and durability of this header pipe is amazing on my yfz450r. I usually replace the exhaust system on any off road vehicle I buy and have never regretted using FMF exhaust components. I have seen and used other brands exhaust in the past but if you have the budget for FMF, Buy FMF. These guys have been around since the invention of the BMX bicycle (hence their name, Flying Machine Factory).Read All Reviews
Mike in IL
I put FMF Exhausts on all my bikes, 2 & 4 Strokes. I recommend FMF to any serious rider! They have great products at an affordable price! Easy to install, adds significant power, and makes any bike look sharp! I am a FMF customer for life!Read All Reviews