UUC and AA are not cheap. They're expensive but for good reasons. UUC Exaust system is like 590 not shipped. AA is even more. If you don't care about performance and sound then get the cheap one. If those are things that are important to you, they you must get UUC or AA.
did you miss the part where it says "you SHOULD get an increase in HP"
if they dont know enough to say YOU DO, or YOU WILL, it tells you what you are dealing with.......people who dont really know what they are doing. they sell it and they dont even test it or know if it really works.>>!!!!!!!!!
anyone can make pipes that look good. but that means $h!t.
I have a SuperSprint exhaust - sounds great! Not loud at all. A bit deeper sound than stock at low RPMs. But overall I love it. You'll need a different diffuser (a plastic plate that goes to the bottom of the rear bumper). It is held by clips, and is easy to get out. You will need one from 6-cylinder E36, or cut custom holes for the two exhaust tips.
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