just put a muzzy on my 02, love it sounds great! might be a bit loud, but not to much! it's nice to be able to here the bike run! my stock jetting is off, no big suprise there, have ivans kit, now just need to get home long nuff to get it in! it seams very lean down low, and a bit off in the mid. it seams to have really woke my bike up, the front end get's a lot lighter now than with the stock pipe! can't wait to get the jet kit in! oh by the way, try to get the packing grease off the inside of the mid pipe, i didn't and it smells like ass! another thing, i wish i had done, drill the center stand stop to take the rubber bumber from the stock set up!