Quote:
Originally Posted by sierra
You can get a 2.5" downpipe + overpipe with a high flow cat from Nameless for $499. Just the one cat should be good enough.
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Have they figured out to make that the cat that is registered so that it will pass? From what I understand, the cat in the header is the one the engine checks for, and will be the one that needs to be present to pass emissions unless you move the O2 sensor.