I've been trying to get an answer on this for about 2months now. but i never get a how-to answer. Do i kill the precats and atempt to move the other cats back? HOw please. I would LOVE to get my cut-outs infront of the cats. back pressure wont be a problem because of my pretorquing and the 2nd O2 sensor does nothing for performance. it just activates that little service engine soon light. please I want to know if i should spend the $60 for the cats or not. it's just not worth it behind the cats


Mark