It turns out that GT500s running more boost with larger crank pulleys and smaller blower pulleys are often plagued by squeaking belts. The solution to this issue is a heavy-duty green-stripe belt. These belts don’t glaze over like the standard belts do. Since we needed to swap belts, it seemed like a good time to step down in diameter to VMP’s 2.59-inch pulley from the previous-gen VMP 2.65-inch pulley PVT was rocking. We headed over to VMP, where Justin used his slick VMP Ultimate pulley puller-and-installer tool ($139.99) to remove the pulley.