cataletic converter
#3
RE: cataletic converter
i didn't take mine out, what i did was cut it open, take a hammer and break all the "cat" out and then closed it up and welded a sheild over it so you can't even tell i touched it. I got 2 mpg better, thats prolly just due to the fact my cat was clogged, but i also got an amazing rumble from my truck now