i already have MBRP cat back.....if i add a header will it maintain the low smooth sound that i have or add a different tone to it? i'm pretty sure i'm gonna add it anyway, just wondering what to expect sound wise.
Well when I installed my Header the sound was a lot more loud! It sounded more agressive=:evil: but then again I don't have a cat, glass or anything...just header, mid pipe and the rear muffler!:smoking:
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