i have one years ago, installed it on my stock 90 all-trac, i could tell the spool would pick up slightly faster, and the exhaust (3"piping all the way back to an HKS hyper muffler, no cats) was a little louder. over all, i was mad it took months to ship because of who i ordered it through, but it looked great, worked great, installed good and i think the person i sold the all-trac to will enjoy it more than i got to

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