Collection: FMF Factory 4.1 RCT, Megabomb, Powerbomb, Powercore 4, & Q4 4-Stroke Performance Exhaust – Moto-House MX
FMF 4-Stroke Performance Exhaust Systems, Mufflers, and Headers | Moto-House MX
At Moto-House MX, we are the go-to destination for performance parts, performance kits, and accessories for the FMF 4-Stroke exhaust lineup. With over 40 years of expertise in optimizing motocross and off-road bikes, our experienced team is dedicated to helping you take your FMF 4-Stroke vehicle setup to the next level.
The FMF 4-Stroke collection delivers the ultimate upgrade to improve performance on 4-stroke motorcycles, dirt bikes, enduro bikes, ATVs, and pit bikes, maximizing horsepower and torque across the entire RPM range. Our collection features top-tier hardware from FMF Racing — providing everything you need to fine-tune your bike's performance.
FMF 4-Stroke Mufflers & Headers Lineup
- Factory 4.1 RCT: FMF’s elite flagship muffler delivering massive power gains, crisp throttle response, and weight reduction.
- Powercore 4: High-end track and trail performance, incredible horsepower, and rugged durability without a premium price.
- Q4 Silencer: Engineered to meet strict off-road sound restrictions on public lands without choking out horsepower.
- Megabomb Header: Patented design mimicking a long header's low-end pull with a short header's top-end scream.
- Powerbomb Header: Uses a unique expansion module to increase exhaust flow and deliver a major mid-range torque boost.
Whether you're looking to boost engine power, improve handling, or enhance overall reliability, Moto-House MX has the performance parts and accessories you need. Our selection of FMF 4-Stroke upgrades ensures that your bike stays ahead of the competition on every ride.
The FMF 4-Stroke exhaust line optimizes performance on common machinery like the KTM 250SX, KTM 450SX, KTM 450EXC, Beta 480 RR, Yamaha YZ450F, Honda CRF250R, and Kawasaki KX450. This premium lineup competes directly with exhaust systems from brands like Pro Circuit and Yoshimura. Our performance packages are designed to keep your FMF 4-Stroke running out front of the competition while staying reliable and budget-friendly.
Shop trusted setups from FMF Racing — all available with fast shipping from our Central Florida location.
Explore our full collection of FMF 4-Stroke performance kits, parts, and accessories today and elevate your bike's performance with Moto-House MX.
Moto-House MX – Choice of Champions – is located in Clermont/Montverde, FL. We are the best shop in Central Florida with lightning-fast shipping.
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FMF Megabomb Head Pipe 045664 - Beta 350 RR / 390 RR 2020-2026
Regular price $337.49 USDRegular price$374.99 USDSale price $337.49 USDSale -
FMF Megabomb Head Pipe 045665 — Stainless Steel - Beta 430 / 480 RR 2020-2026
Regular price $337.49 USDRegular price$374.99 USDSale price $337.49 USDSale -
FMF Mini Factory 4.1 Slip-On Muffler (Anodized/Titanium) 041595 - Honda CRF125F 2019-2026
Regular price $332.49 USDRegular price$349.99 USDSale price $332.49 USDSold out -
FMF Mini Factory 4.1 Slip-On Muffler (Titanium / Stainless Steel) 042383 - Kawasaki KLX140 / KLX140R 2008-2026
Regular price $314.99 USDRegular price$349.99 USDSale price $314.99 USDSale -
FMF Factory 4.1 Slip-On Muffler (Titanium) 041593 - Honda CRF110F 2019-2026
Regular price $314.99 USDRegular price$349.99 USDSale price $314.99 USDSale -
FMF Powerbomb Head Pipe 044176 - Yamaha Raptor 700 / 700R 2006-2014
Regular price $292.49 USDRegular price$324.99 USDSale price $292.49 USDSold out -
FMF Powerbomb Head Pipe 044432 - Yamaha Raptor 700 2015-2023
Regular price $292.49 USDRegular price$324.99 USDSale price $292.49 USDSale -
FMF Powerbomb Head Pipe 040014 - Honda TRX400EX / TRX400X 2006-2014
Regular price $292.49 USDRegular price$324.99 USDSale price $292.49 USDSold out -
FMF Mini Factory 4.1 Slip-On Muffler (Stainless Steel/Aluminum) 041594 - Honda CRF125F 2019-2026
Regular price $269.99 USDRegular price$299.99 USDSale price $269.99 USDSale -
FMF Factory 4.1 Slip-On Muffler (Aluminum/Stainless Steel) 041592 - Honda CRF110F 2019-2026
Regular price $269.99 USDRegular price$299.99 USDSale price $269.99 USDSale -
FMF Powerbomb Head Pipe MX Version 041034 - Honda CRF450R 2002-2003
Regular price $237.49 USDRegular price$249.99 USDSale price $237.49 USDSale -
FMF Powerbomb Head Pipe (Stainless Steel) 041133 - Honda CRF250X 2004-2009
Regular price $224.99 USDRegular price$249.99 USDSale price $224.99 USDSale -
FMF Powerbomb Head Pipe (Stainless Steel) 044244 - Yamaha YZ250F 2007-2009
Regular price $224.99 USDRegular price$249.99 USDSale price $224.99 USDSale -
FMF Powerbomb Head Pipe MX Version 040073 - Yamaha WR250F / YZ250F 2001-2008
Regular price $224.99 USDRegular price$249.99 USDSale price $224.99 USDSale -
FMF Powerbomb Head Pipe 044298 - Yamaha YFZ450R / YFZ450X 2009-2026
Regular price $224.99 USDRegular price$249.99 USDSale price $224.99 USDSale -
FMF Powerbomb Head Pipe 044033 - Yamaha YFZ450 / WR450F / YZ450F 2004-2015
Regular price $224.99 USDRegular price$249.99 USDSale price $224.99 USDSale