I love the Q4 Exhaust for Yz450!

3 replies to this topic
  • FreshDonutsCAN

Posted August 11, 2008 - 10:05 AM


With this exhaust i notice more traction and no loss of power this is a great pipe for the Yz450!

If you need to meet sound requirements this is an awesome buy! :)

  • kain522

Posted August 11, 2008 - 09:22 PM


Good to know. I'm looking for a new muffler for my '04, but haven't made up my mind yet. Did you get a slip on, or did you get a header with it?

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  • FreshDonutsCAN

Posted August 12, 2008 - 07:11 AM


Just the slip on the header increases the efficiency of everything

i dont think ide ever get the header unless i wreck mine the thing runs great as it is :)

  • kain522

Posted August 12, 2008 - 08:31 AM


Thanks for the info.

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