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4-Stroke Exhaust4-Stroke Exhaust

4-Stroke Exhaust from Rocky Mountain ATV/MC

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.

Latest ATV 4-Stroke Exhaust Reviews – You could win up to $500 for reviewing products!

  • Pro Circuit T-6 Dual Exhaust System

    Pro Circuit T-6 Dual Exhaust System

    tyler in VA

    Perfect fit!! Perfect sound!d

    I was a little worried about spending over $700 on an exhaust, but now that it's on is would do it again.. Matched with the power commander5 twin air intake professionally tuned my 2016 raptor 700r se is on point! The sound is great not loud at idle or real loud through mid range.. Gets louder at WOT. But nothing like a big gun. This is the perfect in the middle sound pipe... Plus the duals make my machine the envy of the crowd. Rocky mountain didn't have them in stock when I wanted to buy them but still ordered them through here anyways. Rocky mountain has always taken great care of all my orders in the past, and they even got to my house a day earlier than planned. Two thumbs up... I would recommend these pipes the quality is far superior compared to others for a reasonable price. Don't hesitate! Im glad I didn't. Snappy throttle can really feel bottom end tourqe but more in the top of the gear where it's hard to get performance out of, dyno proven I watched the difference with my eyes.. Thank you Rocky mountain, and pro circuit.

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  • Lexx MXe Slip-On Silencer With Mid-Pipe

    Lexx MXe Slip-On Silencer With Mid-Pipe

    Tim in UT

    LEXX KICKS BUTT

    For the price comparison, you can't beat a Lexx. This Pipe and slip on is AWESOME! Looks GREAT, very easy to install and sounds even better! I took my old FMF Q4 off of my bike to replace it with this, couldn't even tell a difference.

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  • FMF Factory-4.1 RCT Aluminum Silencer with Carbon End Cap

    FMF Factory-4.1 RCT Aluminum Silencer with Carbon End Cap

    Ryne in IN

    Complete FMF Stainless 4.1 system

    I installed the FMF Stainless Steel Megabomb Header Pipe and FMF Factory-4.1 RCT Aluminum Silencer with Carbon End Cap on my 2016 KTM 350 SX-F. On this model bike the shock must be removed in order to get the stock header off. The shock is not hard to remove and FMF even put a video on YouTube to help you. Once you install the FMF header you will not longer have to remove the shock to remove the head because the FMF header is a 2-piece header. The complete FMF system made the bike feel a little more responsive. The complete system also has a great sound. The header and silencer look great on the bike. My only complaint is that on this model is that the exhaust system is melting the number plate along the edge where the header and silencer meet.

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  • FMF Stainless Steel Megabomb Header Pipe

    FMF Stainless Steel Megabomb Header Pipe

    Ryne in IN

    Complete FMF Stainless 4.1 system

    I installed the FMF Stainless Steel Megabomb Header Pipe and FMF Factory-4.1 RCT Aluminum Silencer with Carbon End Cap on my 2016 KTM 350 SX-F. On this model bike the shock must be removed in order to get the stock header off. The shock is not hard to remove and FMF even put a video on YouTube to help you. Once you install the FMF header you will not longer have to remove the shock to remove the head because the FMF header is a 2-piece header. The complete FMF system made the bike feel a little more responsive. The complete system also has a great sound. The header and silencer look great on the bike. My only complaint is that on this model is that the exhaust system is melting the number plate along the edge where the header and silencer meet.

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  • FMF Mini Power Core IV System

    FMF Mini Power Core IV System

    brad in NC

    Great pipe!

    Gave my bike a lot more bottom end power and was easy to install.

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  • FMF Power Core IV S/A Silencer (No CA)

    FMF Power Core IV S/A Silencer (No CA)

    Christopher in MI

    FMF Power Core IV S/A Silencer ( KLR 650 )

    Sound is 10 out of 10. Easy to install ! About 15 mins. Bike seems to perform better, at low and mid range.

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