Under my roadster, the cross over has those two square boxes. Looks like the header goes into the box and then comes out into the exhausts. The TOR's I have eliminated the cats in the pipes.(lesser weight and larger thru hole) Are those boxes in the crossover holding cats also? If so, does anyone make one without them? This could be the sound reduction.
Trouble with being the first. No good **** available yet. Where is Sam when I need him. Does anybody know if he's working on a set of Roadster pipes? If so, I'll take a set.
Later