PLstang

Okay I've decided I need to put on some high flow cats. When I had my H-pipe installed with my LT's they installed an off road instead of high flow catted. Don't worry they made it right with the money, the guys at Strictly Performance are good people. Anyway I thought about keeping it with the O/R H-pipe but it's just to loud. I called a muffler shop and they can install a set of High-flow magnaflow cats (cheaper then replacing the H-pipe agian). The question is, does anyone have experience with magnaflow high flow cats, are they any good? Will changing the H-pipe to a High flow catted H mean I need to change my tune?

howarmat

i wouldnt mess with it....not going to hurt anything having the sensors off still

PLstang

Thats what I was thinking, just wanted a second on it. I'll just have them install the cats and worry about a re-tune when I install the aditional fuel pump and up the Nitrous.

Thanks!