Perfco Performance Premium Wheel Spacers - BMW Z3M (E36) (1997-2003) Spacer Thickness:20mm Can be installed in less

Can be installed in less than 30 minutes

so this product allows you to have the traditional dump valve noise between gear changes and when letting off the gas pedal

especially at the critical area where the inlet tract meets the turbo increasing the size from 48mm to 63mm diameter

and then there's Vini

Perfco Performance Premium Wheel Spacers - BMW Z3M (E36) (1997-2003) Spacer Thickness:20mm Can be installed in lessImprove stance and wheel fitment of the BMW Z3M with Perfco Performance Premium Wheel Spacers. All Perfco Performance Premium Wheel Spacers are hubcentric. Manufactured in Italy, each spacer is machined from billet aluminium and features a black anodised finish to ensure maximum quality. Perfco Performance Premium Wheel Spacer kits are sold per axle and include extended wheel bolts where required. Specification: PCD: 5x120 Centre Bore: 72. 5 * Please