FMF Q4 Slip-On Muffler — Honda CRF450X 2019–2027

Bolt on a genuine power gain and drop real weight over the stock canister — this FMF slip-on wakes up throttle response without a full system's price tag.

Fits: Honda CRF450X 2019–2027.

Why riders pick it:

• Hex-core spark-arrestor design keeps you compliant at trails and forests that require one
• Still delivers a genuine power gain over the stock muffler, not just a sound reduction
• Quiet enough to keep riding areas open without giving up performance
• Direct bolt-on installation, no tuning required

⚠️ For closed-course competition / off-road use only — not legal for street use in some states. Confirm your local regulations.

Not sure it fits your bike? Send us your year and model and we'll confirm.