what size pulleys are you guys running..3'' or 2.75...2.75 seems to be a little too much but i don't own a cobalt yet..what are the gains in boost/ 1/4 mile?

You can do some searching, you'll find all the answers !

well isnt that what im doing?...i dont really have a test subject yet LOL...and the only way to really tell is to try it out and see what kind of numbers each one pulls up but i'd rather just get the most effective size on the first try haha..i see you are running the 3'' what kind of boost increase did that give you?

The 3" pully will give you 15 PSI instead of the stock 12 PSI. A 2.8" pulley will give roughly 17 PSI.

i'd probably mess with the 3''...17lbs seems like a little much at least for a bone stock ss

i'd probably mess with the 3''...17lbs seems like a little much at least for a bone stock ss

good call . . .