this is fmf’s premiere 2-stroke exhaust pipe. unique with its chrome plating and trademarked sst module, the sst exhaust system greatly improves the entire powerband. the secret to the sst is the patented shape of the exhaust system and its ability to increase horsepower through the use of sonic wave technology. the most noticeable elements of an sst pipe are the various bulges and tunnel shapes where the rear chamber meets the stinger section. there are also differences in pipe diameters and silencer junctions. simply put, the sst exhaust system changes the sonic waves, back pressures and exhaust gas temperatures that effect engine performance and throttle response. this is the only exhaust system product ever to earn dirt rider magazines "product of the year" award. no other pipes on the market can match the gains the sst offers.
