08 muffler on an 04

4 replies to this topic
  • kydevildogmark

Posted February 08, 2012 - 01:16 PM


Anyone tried this? Seems as though the muffler pipe is larger on the 08 versus the 04, but everything else fits great. Only issue I am having is possible exhaust leak around the connection. Any help would be greatly appreciated.

  • grayracer513

Posted February 08, 2012 - 02:32 PM


Using the '08 muffler is a great way to cork up the bike without even improving the noise level that much. Seriously, it's a "cute" design on the outside, but the internals are just stupid. Replacing that can on the '08 with almost anything results in 5hp gain or more in the mid range.

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  • kydevildogmark

Posted February 09, 2012 - 09:22 AM


Yea if I had a choice I would be on a full system, but the original pipe when I got the bike had the end cutoff, shortened and riveted badly back together. was leaking everywhere around the end. I got this new 08 oem pipe for $1.00 so I bought it. Works good but not sure if when they hacked the pipe off if they changed the jets or I have a leak around the connection. Bike is stumbling and is poppin thought the exhaust bad so not sure what I am up against.

  • grayracer513

Posted February 09, 2012 - 10:23 AM


Probably a leak at the mid pipe joint. The '08 has a larger header outlet than the earlier bikes.

  • kydevildogmark

Posted February 09, 2012 - 12:12 PM


Yea that is what I am thinking trying to come up with a fix, but haven't come across anything intelligible yet.

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