ok...I was just looking at some pics of the headers/y pipe setup and realized that the high-flow cat currently on the car which is part of the Sho Shop Y pipe can't be reused, obviously, and the headers are made to be a straight bolt-on right? so that means I'll have to go back to using the stock main cat in between the MSDS headers/y-pipe and my Borla...correct?
I'm just trying to get the installation straight in my head. I'll be going from SHO SHOP Y-pipe w/ cat & Borla to the MSDS headers/y-pipe & Borla. The main difference being that the MSDS y pipe consists of merely the down pipes from the headers that go down to the where the stock cat would be...there will be a gap from there to the exhaust. I'm thinking as I'm writing here. So I need to make sure I still have that stock main cat sitting around or I'm in trouble.
