Fitting FMF Slip-on

3 replies to this topic
  • Strattos

Posted September 15, 2008 - 11:26 PM


Apologies if the information i'm about to ask for has been provided before. I've been scouring the posts and can't find what i'm looking for.

I've just purchased a 4.1 slip-on and want to know if it's necessary to put any exhaust sealant between the joints at slip-on/mid-pipe, and mid-pipe/header?

Also, for those who've bought them, do you use the stock mounting bolts that come with the bike or did you get provided with some with the slip-on? Mine came without.

  • KennyMc

Posted September 16, 2008 - 10:21 AM


My FMF Powercore slip-on came with a sleeve which fit very tight. No sealant required. '07 WR450.

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  • KJ790

Posted September 16, 2008 - 10:32 AM


No sealant is required as long as it doesn't leak there. If you find it leaks then pull it off and put a little high temp silicone on it. I believe the Factory 4.1 should come with a different bolt for the mount on the can. The bolt on the midpipe is the same, but the bolt for the mount on the can should be shorter.

  • Strattos

Posted September 16, 2008 - 03:35 PM


Thanks guys. I think i'm missing the bolt for the can. Might go looking to see if I missed it in the packaging.



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