VAG 3.0T / TFSI Supercharger Pulley Upgrade 50HP+Smaller diameter pulley which can be mounted on the supercharger. Because of this smaller pulley, the supercharger speeds up so that it moves more air and thus can deliver more power. The installation of the smaller pulley alone already yields approximately 50hp+ extra. When the ECU Software is also adapted to this (Chiptuning), we can get almost 100 up to 130hp extra from the engine! Maicson Supercharger Drive Pulley Upgrade reduces the diameter of