Yamaha YZ450F Slip-On Exhausts
- FMF Racing® - Factory 4.1 RCT™ Slip-On MufflerFactory 4.1 RCT™ Slip-On Muffler by FMF Racing®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...All new incorporating the latest in Resonance Chamber TechnologyPatented core shape lowers sound level while maintaining maximum power output$449.99 - $1,124.99
- FMF Racing® - Powercore 4™ Hex Slip-On MufflerPowercore 4™ Hex Slip-On Muffler by FMF Racing®. When designing the PowerCore 4 HEX, FMF Racing looked at top of the line products to deliver race-inspired performance at an economical price. The end result is a quality muffler with...Overall increase in power and torqueDurable stainless steel and aluminum construction$359.99
- FMF Racing® - Powercore 4™ Slip-On MufflerPowercore 4™ Slip-On Muffler by FMF Racing®. When designing the PowerCore4, FMF Racing looked at top of the line products to deliver race-inspired performance at an economical price. The end result is a quality muffler with improved...U.S. Forestry approved spark arrestorMegamax II is a reverse cone megaphone design and can be run open for closed course or with discs for off-road riding$188.99 - $359.99
- FMF Racing® - Quiet Performance Q4™ Hex Slip-On MufflerQuiet Performance Q4™ Hex Slip-On Muffler by FMF Racing®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship....Incorporates internal baffles, chambers and space age sound-absorbing materials to accelerate exhaust flow with less noise and minimal power lossWell under the 96db sound output on most machines to satisfy strict sound requirements$377.99 - $404.99
- FMF Racing® - Turbincore 2™ Stock SilencerUniversal Turbincore 2™ Stock Silencer by FMF Racing®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured...Perfect application for adapting a performance spark arrestor to older bikesComes with a kit of hardware including a mounting bracket, spacers, shaped stinger tube, and stainless steel mounting strap that paves the way for the garage mechanic to fit the unit onto their machine$179.99
- FMF Racing® - Quiet Performance Q4™ Slip-On MufflerQuiet Performance Q4™ Slip-On Muffler by FMF Racing®. Developed over years of championship offroad racing. Max sound output 96dB; most models below 94dB. Use with stock or FMF header. Constructed from aircraft-grade aluminum and...Incorporates internal baffles, chambers and space age sound-absorbing materials to accelerate exhaust flow with less noise and minimal power lossWell under the 96db sound output on most machines to satisfy strict sound requirements$193.49
- FMF Racing® - Turbincore 2™ Stock Silencer (020303)Universal Turbincore 2™ Stock Silencer (020303) by FMF Racing®. The FMF Racing Universal 2-Stroke silencer is for you! The straight through design of the spark arrestor canister and the performance flow stainless steel end cap ensures...Perfect application for adapting a performance spark arrestor to older bikesComes with a kit of hardware including a mounting bracket, spacers, shaped stinger tube, and stainless steel mounting strap that paves the way for the garage mechanic to fit the unit onto their machine$179.99
- FMF Racing® - Turbincore 2™ Stock Silencer (020302)Universal Turbincore 2™ Stock Silencer (020302) by FMF Racing®. The FMF Racing Universal 2-Stroke silencer is for you! The straight through design of the spark arrestor canister and the performance flow stainless steel end cap ensures...Perfect application for adapting a performance spark arrestor to older bikesComes with a kit of hardware including a mounting bracket, spacers, shaped stinger tube, and stainless steel mounting strap that paves the way for the garage mechanic to fit the unit onto their machine$179.99
- FMF Racing® - Factory 4.1 RCT™ Slip-On Muffler (044445)Factory 4.1 RCT™ Slip-On Muffler (044445) by FMF Racing®. The Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology™ both internally and externally. In addition, FMF achieve a shorter overall length that is...All new incorporating the latest in Resonance Chamber TechnologyPatented core shape lowers sound level while maintaining maximum power output$719.99
- FMF Racing® - Powercore 4™ Hex Slip-On Muffler (044441)Powercore 4™ Hex Slip-On Muffler (044441) by FMF Racing®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship....Overall increase in power and torqueDurable stainless steel and aluminum construction$359.99
- FMF Racing® - Quiet Performance Q4™ Hex Slip-On Muffler (044442)Quiet Performance Q4™ Hex Slip-On Muffler (044442) by FMF Racing®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship....Incorporates internal baffles, chambers and space age sound-absorbing materials to accelerate exhaust flow with less noise and minimal power lossWell under the 96db sound output on most machines to satisfy strict sound requirements$404.99