Originally Posted by SilverSleeper

he is either being a smartass or referring to how illegal it is do do this on a street driven vehicle where you can potentially be fined to hell and back. one muffler shop quoted me $10,000 + parts and labor to remove the cat and put in a test pipe because thats how much they get fined if caught. there is really nothing to be had in performance gains unless you are running too rich and your welded itself shut like mine did. if thats the case then unbolt the pipe behind the cat then take an 18 inch long punch and hammer to the inside until it is hollow. make sure to clean out all the loose pieces before bolting it back up.