Novice Exhaust Question
#1
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If I replace the stock muffler on my 04 QC 4.7L with some Flo Master with two pipes coming out, will that have any effect on HP/Torqe/Gas Mileage or is it just for looks and noise. BTW, I am having an Airram installed in the next couple of weeks as well.
Your thoughts are appreciated.
Your thoughts are appreciated.