would there be any advantage in changing the single part of the svt exhaust to 2.5"? two 2.25" pipes feeding into one 2.25", seems like opening up the single part would be better also I'm going to gut the precats and install an aftermarket y-pipe, hiflow cat and magnaflow resonator, DO I NEED TO DO ANYTHING TO THE 02 SENSORS?????
Last edited by tblazer; 07/18/04 05:40 PM.