exhaust interchange with 2007 s4r

[trophystock]

I just picked up a super nice 07 S4R from the original owner to replace the 99 900S I had.  The bike still has the factory exhaust on it so I am on the lookout for a good deal on a used system. My question is what all years/models will interchange with an 07 S4r?  Thanks!!

[muskrat]

if you get a mid pipe like this http://www.monsterparts.com/p/D-138B/Marving+Cat+Eliminator+Mid-pipe-+S2R+800-S4R.html your options are plenty.  you need to first figure out what you want, under tail, gp style or single side shotgun style.

[trophystock]

It is a non issue now.  I was researching the subject and ran across the Motocreations Boom tubes.  How did that guy get in my head and make the exhaust I have envisioned for the last 5 years or so.

[muskrat]

those are nice too