is this exsist, and if so how much, i'm so sick of dealing with my stright pipe that i replaced my converter with, its a piece of [censored], and honestly i'm still in the process of reading my haynes manual on my car, and still getting familiar with cars in general, i like working on my car, but i dont know if i could gut my precat or not, without furcking it up, i just cleaned my mass air flow and censor today, so hopefully it will run a lil better, we will see, but i'm not a auto mechanic quite yet, so back to my question can i start at the exhaust manifold and just go all the way back with a new everything, or is this too pricey, or not possible..thanks
