Thread: header swap vs. my 'green' side.
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Old 11-28-2016, 07:52 PM   #9
Captain Snooze
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Quote:
Originally Posted by mav1178 View Post
Put it this way:
Aftermarket header/OP/FP systems with a high-flow catalytic converter emits less tailpipe than stock.
I'm not sure about that. I had JDL catted header and catted front pipe (200 cell cats) and my car failed emissions test here in Aus.
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My car is completely stock except for all the mods.
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