Please select make, model and year4-Stroke Exhaust
It’s no secret that a properly selected aftermarket exhaust system can do wonders for your dirt bike. There isn’t an easier or faster way to add horsepower throughout your bike’s RPM range. When you want a new dirt bike exhaust system, Rocky Mountain ATV/MC is the best source around. We carry an extensive selection of dirt bike exhausts. Do you love FMF exhausts? So do we. Are you looking for a Yosh exhaust system? We’ve got several. How about a ProCircuit T-4 silencer? We carry it. Do you want a Moto Works exhaust? You’re in the right place. Interested in a Lexx MXe slip-on? Get it here at Rocky Mountain ATV/MC. If you own a 4-stroke dirt bike, a new exhaust system is a must have.
Whether you need a new muffler to boost your motocross racing performance or just a good silencer with a USFS-approved spark arrestor for enduro use, Rocky Mountain ATV/MC is the best place to find dirt bike exhaust pipes. We carry all of the leading brands: FMF, Yoshimura, Lexx, Pro Circuit, Motoworks and more. Exhausts are available in a variety of materials as well: titanium, stainless steel, aluminum and even carbon fiber. When you need a 4-stroke exhaust for your motorcycle, you can’t go wrong with these excellent mufflers and silencers. Whether you’re into motocross or just love a good trail, your dirt bike will really rip with these exhaust systems!
Matt in OH
Fit perfect on my sons bike. Between the exhaust, air box and jetting, his bike has defiantly woke up quite a bit. Sounds great without being too loud. Easy install. Gets really hot on the pipe itself, you need a heat shield I used the stock heat shield that I attached with conduit hangers from the hardware store.Read All Reviews
kevin in WA
Excellent quality product. Easy installation however also purchase the FMF sring puller, must have. Looks amazing on the bike. The sound makes the bike. You cant compare youtube videos to even come close to the sound this puts out.Read All Reviews
Danny in CA
This thing is a beauty! Added power through out.Read All Reviews
Adam in TN
I purchased this header about one week ago and so far I am very impressed with the results I have seen. I have a 2015 kx250f and it produces very good bottom end power. If you are looking for a new header this fmf megabomb is the way to go. The only thing I had to purchase in addition to the header was the fmf exhaust spring kit which was not included with the header.Read All Reviews