i need a performance exaust for raptor
#7
yoshi. you won't be disapointed. i removed the spark arrestor. i could not believe it got that much louder. it also pepped up the throttle response.
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#8
I have a friend that added a full system RS-3 Yosh. Man, that thing sounds AWESOME! I love riding it. It bumped his EX up to 33HP. It has alot more top end, middle pulls alot harder, and low end has tons more torque. It's a great system. I've never tried the Sparks or anything, but, You can't go wrong with the Yoshimura.
#9
the main reason i went with yoshimura is they are very well known for there performance on motorcycles. i own a raptor which yamaha put a "tuned down" motorcycle engine in it. they use the 660 in their mz scorpion. so yoshi was the obvious choice.


