ean611 Posted March 19, 2009 Share Posted March 19, 2009 lewinbn, the aftermarket piping for your car should have everything it needs to stay legal Link to comment Share on other sites More sharing options...
zmarko Posted March 19, 2009 Share Posted March 19, 2009 Not to derail, but if I get aftermarket piping, will I need to drill in bungs for O2 sensors. I will want to keep it legal enough to pass inspection. You actually take out the up pipe O2 sensor (iirc). Search for "resistor fix" and you should come up with some hits explaining it all (it's been like 3 years since I researched it). Link to comment Share on other sites More sharing options...
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