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4-Stroke Exhaust4-Stroke Exhaust

4-Stroke ATV Exhaust

Many aftermarket parts allow you to customize your quad, but nothing else has quite the same effect as a new ATV exhaust. The exhaust system helps control two vitally important aspects of any four wheeler: the noise level and the power output. By swapping out the silencer or even replacing the full exhaust system (including the mid-pipe or head-pipe), you can reach the sound and power you’re looking for.

If you’re looking for an ATV exhaust silencer, you can’t go wrong with Rocky Mountain ATV/MC. On this page, you’ll find silencers and exhaust header pipes for 4-stroke quads. And since the exhaust system is so vital to a quad, you’ll find major names here like FMF, Lexx, Pro Circuit, Yoshimura, HMF and others.

For four wheelers, riding the trail is just as important as tearing up the track – if not much more so. That’s why the silencers we choose to carry include USFS-approved spark arrestors, allowing you to enjoy riding in the woods both safely and legally.

If your ATV needs a whole new exhaust or just a silencer, this is the best place to pick one up. Enter your quad’s make, model and year above to see what we have available to fit your machine.

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

  • 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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  • FMF Power Bomb Header Pipe - Moto

    FMF Power Bomb Header Pipe - Moto

    Devon in CA

    Noticeable

    Noticeable mid to top end power increase.

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