i know this seems like a noob question. But i order the 2.7 Pulley from PCFY, i went to have it installed today and the mechanic said its the same size pulley thats already on it. The stock 2.8 inch pulley. I put the pulleys next to eachother and they were the exact same size. And yesi looked at the rib part and the outer edge as well. I couldnt see any noticeable difference in the size. The package did say 2.7 and so did the reciept. So is it just to small of a difference to notice, or did i get the wrong pulley from them?


2006 Black Cobalt SS Supercharged G85
13.91@102.77

enough to tell the difference side by side. send it back.