FMF Powerbomb SS Header Yamaha YZ400/426 ('98-'02) | 040050 CFMoto Soft sidewall allows for tire

Soft sidewall allows for tire manipulation over all obstacles

Featuring Alpinestars’ exclusive and revolutionary rear stabilizer for progressive force relief (PFR) the BNS Tech 2 is designed for use in motocross and off-road riding and offers a highly personalized and stable fit while incorporating innovative new features such as a new quick release locking system

and Factory Edition #2 Rear Chain Guide with replaceable wear pad

Easier and faster to use than any other tool available

front profile provides the best feel and confidence when traction matters the most

FMF Powerbomb SS Header Yamaha YZ400/426 ('98-'02) | 040050 CFMoto Soft sidewall allows for tireThe FMF Power Bomb is a four stroke header pipe unit that has a unique bulge precisely located in the header system. A "pre muffler" of sorts, the Power Bomb actually lowers sound output because it creates more surface area to absorb the sound medium (exhaust). The surface area of the perforated core lets the sound exit into the absorbing material (steel wool packing) and then allows the air to expand, cool and ramp back up with the higher pressure