Not in a gayfire, removal will only make negligible numbers on a street car. There many other things to do to a NA or SRT 6 that are worth more and legal. The 70's are over, super restrictive cats are not the issue they once were. The automakers are being strangled by CAFE mileage requirements, and actually have insentive to make hi flow cats. Random Technolgies is one manufacture making after-market cats that support 1000hp cars.
Originally Posted by Maxwell
no cat= more hp.
all you nee to do is install quick release clamps on the straight pipes, drop them out and clamp on your cats for emmisions test. this also will save your cats in the long run, won't need to buy them when they fail if you don't use them. I've been doing this for years on all my vehicles. some vehicles will gain 2 mpg with this mod.