Well i dont know exactly. I have always had one...but i'm sure it helped me get down to a 2.8....I was just looking at someone's scans that had pretty much the same setup as i have without the intercooler and he had a 3.2 pulley and was knocking pretty bad. so i'd say if i didnt have one i could only run around a 3.2 pulley
It cost me a 1000 dollars though...If you do go with the intercooler be sure to get the fullsize and not the short stack...wich is half the size of the fullsize...A lot of people say it's not worth going with the ss...
And no problem on the help...Thats what were here for.
