For the past three cars that I have owned I have done custom piping and muffler to all. Well I had mine done just recently with a Greddy style muffler and 2.5 inch piping with the stock resonator taken off and a high-flow glasspack put on backwards (So the ripples on the inside don't catch a lot of airflow). Are these dimensions pretty good to get the best performance out of my car?
#48909, "RE: Custom Exhaust, best piping size" In response to Reply # 0
2.5 piping is ideal for our cars in n/t trim. if you get a turbo youll want to upgrade to 3", but not before then, you wont see many gains if you up to 3 and are still nt. its overkill more or less. just stick with 2.5
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