No CELs here and I have been running with the TS Bypass pipes for a few months and several thousand miles now. The secondary cats just seemed to be necessary in CA. I have not noticed any difference….except in PERFORMANCE from NOT HAVING them STRANGLE MY EXHAUST! The Cat Backs make the system IMHO.
The fitment was a little struggle, long since forgotten. "Fettling" would be a good word to describe it. However, if you have seen muffler shops install pipes they move 'em around quite a bit!
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2002 Porsche Boxtser S - Silver & Chrome - Died from IMS failure AFTER IMS was replaced!
Last edited by Homeboy981; 12-10-2012 at 04:41 AM.
Reason: mis spelled
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