· Resident Craigslist Whore
the dynomax is just too quiet on my 02 and i want to do true duals on it. couple questions. i noticed that after the rear 02's and the Y-pipe, there's another cat. is that a third cat or just some kind of expansion chamber of some sort? there's no sensor after it that i could see, so removing it shouldnt hurt anything, would it? idealy i would cut the Y-pipe and just run back to 2 14" magnaflows. is the Y-pipe on there 2 1/4" before the Y? id love to do an X pipe inline, but i think the duals will be running too close together to fit a pre-fab one in.