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Title: mudslinger exhaust Post by: 1980z28 on May 16, 2009, 09:32:32 PM I just installed a mudslinger exhaust from Supertrapp. I thought all Supertrapp exhaust had discs in them you could change to tune the bike better. I didn't see them in the Mudslinger. And, how do you know when it is time to change the packing? I have a Yamaha 450 Grizzley and and anxious to do what it takes to make it run better. I also intalled a K&N filter with a precharger and rejetted, although I am not sure I used the right jet. Runs a little better, but I expected more. Any suggestions?
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