Quote:
Originally Posted by NorthStyle
I'm pretty sure all of the backfires will destroy the cat material... could be wrong though but why not just get a resonated test pipe?
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State inspections, :/. I'm sure about that tho. Audi's and other stock cars have it from the factor. I ran it on my BMW for over a year and had no issues on the stock cats
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14 Q50 AWD, ARK, ECUTEK (SEB), Takda,
