Wr450 Head Pipe

4 replies to this topic
  • GMC3500HD

Posted January 18, 2007 - 04:32 PM


Can I Use A Fmf Head Pipe With My Stock Muffler? I Don't Want A Full System Because My Bike Is Quiet And Sounds Good. I Have A
Gyt-r Insert In The Stock Muffler. Fmf Says It Increases Power And Quiets The Bike By 2db. Does This Sound Right?

Thanks For The Help

  • msgbean

Posted January 18, 2007 - 04:43 PM


What year is your bike?

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  • GMC3500HD

Posted January 18, 2007 - 04:46 PM


Sorry, That Might Help. It's An 04. It's Plated And Never Goes Off Road

  • msgbean

Posted January 18, 2007 - 05:13 PM


I believe it would fit.

  • ausgeflippt13

Posted January 18, 2007 - 06:09 PM


As for the increasing horsepower yet quieting it -- I truly find that hard to believe, given that quieting it would restrict it and thus decrease horsepower.

...Although it could be something "gimmicky" like increasing top end a smidge but decreasing everywhere else...


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