Exhaust sound
check out ls1sounds.com
also searching the site will give you a plethora of info. For the price of the cat back you could do true duals.
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Now, if you already have the loudmouth & are contemplating lt's & ory, then just swap out the resonator for a moroso spiral flow muffler (they are the same size). I ran this setup before I got my duals, and it sounded pretty good.
what did you already order it? according to the sig you did. its going to have a lot of high pitched pops to it and be very loud. if you still can, id try to at least switch to lm2 before they send it. kinda pointless to make this thread after ordering it...
http://ls1sounds.com/


