stock exhaust

4 replies to this topic
  • dirtrider999

Posted May 07, 2009 - 12:00 PM


i have a 07 450 and i was wondering if anyone has just taken out the first plate where the pea shooter ataches to. i was just wondering if it screws up the back pressure or anything?

  • Ironhorse

Posted May 07, 2009 - 08:13 PM


When I bought my 2008 wr 450f the dealer did the mods and that is just what they did. It seems to run good but it is loud and I am unsure if I will pass a sound check. They said they have never had a problem with it but it does seem loud to me.

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  • dirtrider999

Posted May 07, 2009 - 08:47 PM


i think your talking about the baffle inside the pea shooter

  • blunko

Posted May 08, 2009 - 02:54 AM


Yep, have taken mine out without any issues.

However, as always, any change in air flow generally requires a change in fueling.

  • dirtrider999

Posted May 08, 2009 - 08:24 AM


how did you cover the two holes left by the pop rivets. or did you leave them opan


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