Imagine getting four stroke power from your two stroke...that would be FMFs Gnarly! Big low end power and brawny construction make the Gnarly the strongest, best performing off-road pipe on the market. But the real meat behind the muscle is the material. Ultra strong 18-gauge U.S. steel makes this the toughest pipe in our line. Strong and rugged, this aggressive pipe dishes out handfuls of low-end torque with the mid range pull needed for the rigors of the off road domain. This makes the Gnarly an excellent off-road pipe and superb for tighter MX tracks and trails. If you like to ride a gear higher or just prefer tons of low-end grunt, this is the pipe for you