4 replies to this topic
  • lt1air

Posted May 06, 2008 - 05:50 AM


hey all, i'm thinking about waking up the bottem end on my 08 450, would a slip on muffler be good enough??, full systems are very costly , i'm a novice rider at our local track so it's not for race purpose.
what type has been proven also
thanks guys

  • 06crf_er

Posted May 06, 2008 - 05:53 AM


What are you riding exactly? Check this site out: www.mrd-racing.com

He's got a system for the 450 if that's what you're on and his warranty is unmatched. For the price, it's almost what you'll pay for a slip on from most manufacturers and he will talk with you and tune it as you like.


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  • Slinkyman16

Posted May 06, 2008 - 08:31 AM


or you can also bump up the rear sprocket a tooth or two.. helped on my 07 untill i picked up a ti-4

  • motox100

Posted May 06, 2008 - 09:30 AM


See if you can find someone willing to sell their 07 stock exhaust. The muffler bolts right up and makes a big difference.

  • Pappy141

Posted May 07, 2008 - 06:58 AM


I have an 08, and I put on a FMF 4.1 Ti slip on with the ti mid-pipe. Not only does it wake up the bottom and mid it remains very smooth and linear. Down the road, if I wanna add a the header it bolts right on. Not to mention, it sounds really cool.

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