Scorpion Raptor Slip-On

Scorpion recently sent us this attractive stainless slip-on muffler for Yamaha's Raptor. The dyno sheet with it shows massive improvements to the low and midrange response of the big 660cc motor, with a peak pickup of 4.3 horsepower and 7 lb/ft. of torque. It runs $299, with an optional spark arrestor going for $36.50. Scorpion: 800/247-1767; www.scorpion-exhausts.com.