Increases the speed of the G-charger and thus the boost pressure. Effective increase in performance! However, if a smaller charger wheel is used, the G-charger should be in good condition. Made from high-quality steel! Available in the following sizes: 60mm 65mm Also for 16VG60 Spacer disc for charger wheel not included in scope of delivery. Please order separately. (subject to registration) Manufacturer Information about the manufacturer BAR-TEK BAR-TEK Motorsport GmbH Im Rauschen Auel 3, 51491 Overath-Brombach, Germany info@bar-tek.com