You are not the first person I heard that their Z1 Motorsports high flow catalytic converters failed. I wonder what company is making their high flow catalytic converters for them now?? You should that done some more searching before you made your purchase. I would have not given Z1 Motorsports my business. If you are not going to run catless test pipes than I do know that AAM Competition and Fast Intentions have a excellent track record with the quality of their catalytic converters.
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