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Old 11-09-2016, 05:13 PM   #2
KillboyPowerhead

 
Drives: 2015 Z/22
Join Date: Aug 2015
Location: Ontario, Canada
Posts: 988
From the H-pipe back ("cat-back") you can replace with the V8 exhaust but there isn't much to gain, just a slightly deeper tone due to the fact that the V8 pipes are 2.5" diameter versus the V6's 2.25" - everything else is pretty well the same.

If you're after a different sound you'll want to go aftermarket/custom. I replaced my H-pipe with a "resonated X-pipe" by Magnaflow (part number 11386) which is basically a muffler in the form of an X-pipe, and then replaced everything after with 2.5" pipe (i.e. removed the resonators and mufflers), and it sounds pretty slick. A cheaper alternative (since you pay a decent amount for labour here) is an axle-back (i.e. aftermarket mufflers). If you're after a cat-back I recommend what I did.
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