Quote:
Originally Posted by mapster37
FWIW: have active autowerk race xpipe(no primary or secondary cats)paired with stock muffler, i love the sound, dosent get really loud until you really put your foot down. their tune took care of CEL
in my opinion any aftermarket muffler is purely for acoustics, there is very little if any hp gains compared to stock, not worth the $$ if you ask me
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I was mainly talking possibly just delete the muffler entirely and then picking up andrews tune at Alpine and doing the underdrive pulley with that to make up for torque loss.