if you want louder then stock
I would get a new mid pipe of your choice that way you will pick up performance(muff wont added much) but by keeping the stock muffs the car wont be that loud
when I did my mac prochamber I still had the stock muffs and sounded great compared to the stock setup
but it was not to loud
even with my dumded magnaflows and my prochamber its not so loud the cops mess with you
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RUN IT STAIGHT AND RUN IT HARD
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Novi 2000
60' 1.46
1/4 10.67
mph 126.5
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