Hi everyone and Merry Christmas! Now for the question: Do any of you know of any reason why I can't put a set of 2007 slip ons on my 2006 SG? I am beginning to not like the Thunderheaders I put on a month or two ago. The 07's look like they are less restrictive than my 06's and in my limited experience mind, they might work well with the SE intake and the Cobra FI2000R fuel managment system. Here's wishing you all a safe, and happy, Christmas!

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A friend of mine just put a set of modded 2007 mufflers on his 2006 Ultra. Work fine.

 

I posted a message on this somthim back. The 07 work great on a 06 and we tried it, made some difference in performance also, The 07 is a better flowing muffler than the 06 and older.