Is there/what is the best thing to do with the pre-cats/cats to get some extra power? I saw about modifying the y-pipe but that looks like a lotta work, and I also don't want to spend much money. Will removing the main cat add power or is the y-pipe so restrictive it would do nothing?
Sorry if this is a dumb question, but I think it's obvious I've never really had reason to pay attention to duratec stuff before. Time to learn. Thanks.
