Decades of racing development went into the design of the FMF Powercore 4 complete exhaust to improve the power and performance of your dirt bike or ATV at a practical price. The FMF Powercore 4 exhaust is a muffler that will boost power and torque throughout the power range, making the Powercore 4 exhaust usable for all types of riding. FMF designed a Hi-Flo end cap and core for the Powercore 4 exhaust system to increase power by creating a free flowing end cap and a core that allows room for exhaust pulse. This results in a consistent power curve. The FMF Powercore 4 exhaust system uses and advanced cross-weave packing that is more durable then the traditional packing. The cross-weave packing also keeps the Powercore 4 at a reasonable sound level by dissipating the exhaust sound. FMF constructed the Powercore 4 muffler using aluminum to keep the weight down with a stainless steel head pipe and components for extended exhaust system durability.
Established in 1989, Works Connection continues to produce quality products for all your moto needs. CNCd and formed from aircraft-grade 6061 T-6 aluminum. Specific design and fit for each make and model. Covers to protect frame rails but does not extend beyond rails. Oil drain access hole pre-cut into the plate for easy oil changes without having to remove the skid plate. CNCd aluminum brackets with quality hardware for secure mounting. Note: Some models utilize stock mounting lugs. Made in the U.S.A.