Gonna be getting one used tommorrow and havent been able to find any aftermarket exhaust for it, found some for the older body style but not haveing any luck with the new style??? Any one know for fact who makes one, thanks, Rob.

 

the hmf for the 450 or the gytr for the 450 I believe will fit it.
On ebay i have seen some for the 350 i am pretty sure.

If you check the part #s on yamaha's part site for the stock exhaust they should be the same i belive.

 

Cool, Thanks, I picked it up today at around lunch time and brought it home and began the going through process, emptied out all the old fuel, replaced with fresh 93 octane, adjusted the valves, cleaned the carb, because it sat way more than it was ridden by the former owner, changed the rear differential fluid, oil, filter, cleaned the air filter and changed the spark plug, after that had to adjust the front tigh rods was pulling to the right a bit much, got er dialed in perfect though, I actually removed the end cap as to remove the spark arrester from the muffler and very nice, compared to the old style, just unbolt the cover remove the sparky re-bolt the cover back on, I can tell it definately pulls harder now, less restriction, because it was already running a little rich and sootin a little bit, warmed it up and took it for a couple of test launches through the neigborhood and I am truly shocked, a lot quicker than I ever imagined! I really like it, I almost think it may be quicker than my 07 350 Raptor.

 

I looked on the yamaha oem parts finder and discovered that the 08 450 and the 06 350 have the exact same muffler part# 5ND-E4711-00-00, thanks for the help!! might be ordering up an HMF hear shortly!!!

 

cool I thought that they were the same.