The FMF Racing Gnarly 025143 exhaust is purpose-engineered to maximise lower RPM horsepower and torque, transforming your 2-stroke into a torque-rich powerhouse ideal for challenging off-road terrain. Constructed from rugged 18-gauge steel and finished with FMF’s signature nickel plating, this expansion chamber is built to withstand the harshest environments while delivering strong bottom-to-mid range power for late model 200cc to 500cc machines.