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Dude. Run with NO mufflers. Just tell him to delete the muffler and go with strait pipes. Its not too loud, and since your not ditching the CAT you should be legal. If you dont want to do that, go with the SLP II (Axle back). I am running them with no resonator. It sounds great but I am still thinking of removing the SLPs and going strait pipes. Thats my two cents.
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2010 2SS Camaro (sold)
2010 ZL 427 Camaro (sold)
2012 ZL-1 Camaro (sold)
2018 ZL-1 Camaro |