wonering what the difference between the 165mm pulley wheel for the 4agze and the 175mm in the way of boost, torque and power gains etc as i have the 165mm pulley now and im wondering if its worth upgrading to 175mm one
assuming u are running an sc12, i think it would be a much better investment going to an sc14 instead. Searching will yeild the answers, think its 2psi differnece, so roughly 16hp more