Ok, age old question. My exhaust has started to rumble up by my manifold. prolly a bad donut or something of that nature. kinda like all of a sudden on the way home.. maybe those train tracks I jumped? who knows
anyways. I have a series I 3800 from 90' and I'm looking for an opinion on how important the cat is to the performance of this engine? needed for the back presure? just emissions? will some sensor go nutz?
the car is in great shape and cna haul *** like no other but i was just wonderin what kinda reaction I can expect from the car if I straight pipe it to the muffler?
I'm sure i am not the only one to have asked this or do it?