I have tr55s gapped at .045. I have my pro-flow 75mm w/k+n, shoshop y-pipe and replaced resonator.

Besides shortening the gap, anything else I could change that won't cost too much? I have a proflow optimizer, but I'm scared to put it on.

95 SE Modded - Gone 98 E0 Black SVT - Gone 98 se sport - Broken 00 T-Red SVT - Nice