I have the stillen HFC on mine with the AAM shortys. I have had them on for prolly 5000 miles or so lot of highway driving and my bumper is fine, and there is no smell compared to test pipes. Sound is ******* nice throaty as **** at 3500-4500. It is quieter in the top end because i still have the restrictive stock y pipe. Im thinking of getting an exaughst shop to custom make me an x-pipe to take the place of the stock y-pipe. Anyone have experience with this?
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