Quote:
Originally Posted by kitw
The sport x pipe makes negligible power gains. Not worth it. You get a slightly throatier exhaust note. I wouldn't do it unless you really want your car to be louder, because you aren't going to notice the power difference. To get power, you'll want to look at deleting your primary cats.
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We had a customer dyno his car at a AA before and after and they saw a solid 10-15 whp gains as well as about the same in TQ witht he street X pipe compared to stock.