Quote:
Originally Posted by DeliriousClam
I'm willing to bet the gaskets around the cat aren't making a full seal. That's what happened with mine when I got those codes
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I'm running Motordyne ART test pipes, and the last time I was under the car, we double checked and re-torqued all of the bolts on the exhaust system from the stock manifolds back. So not too sure that it's a gasket leak.