Does the 63.5mm midpipe leave all the catalytic converters in place, it just changes the piping and resonator? ThanksAny update on the larger than stock smaller than 80mm middle pipe?
Does the 63.5mm midpipe leave all the catalytic converters in place, it just changes the piping and resonator? ThanksAny update on the larger than stock smaller than 80mm middle pipe?