I'm looking at a new exhaust system for my car and I don't know if I should go with 2.5 or 3 inch? My car is mostly stock.. any info will be appreciated!   Thanks, Drake

I just got my hands on a S-AFC II. I been searching for the ecu pin out to install it. Can't find it. Does anyone have it? Also I saw that to get it fine tuned I need a wideband. Going with the automotive wideband does any one have the install sheet? Where do I put the wideband o2? I heard it needs to be about 12 inches from the turbo. Is that accurate? Any other advice would be good thanks.

http://southjersey.craigslist.org/pts/3941556233.html

I'm thinking about ripping all my a/c out.. good idea or no? It doesn't work very good anyways   Thanks for any info, Drake