I know in the past some have turned out to be really flaky and stuff so im wondering what cats are best for turbo application. Currently i run the GReddy TT setup with the 3 inch Pro-1 exhaust and the sound is kind of mellower than the stock sound so id like louder but not rousch mustang kind of loud lol.

 

cats and turbo is not a good idea. you should go with test pipes for less restriction and better air flow..

 

See there ya go I already dont know what im talking about lol. In that case what test pipes

 

AAM makes some nice 3 inch test pipes.

 

i <3 my kinetix, but since you're a turbo i think u need to be running test pipes, not hfcs.