All DR-Systems require longer wheel bolts. These must be ordered separately. H&R Wheel Spacer Bolts are listed here. When ordering wheel bolts, please follow these guidelines:
a) If possible, name the brand of wheel.
b) New bolts must be longer than the original bolts by the width of the wheel spacer used.
c) The bolt head must be identical to the existing bolt:
d) Safety guidelines
e) Please ensure that the wheel bolts do not damage any part of the brake system (ABS sensors, etc.). Turn the wheel by hand and check clearance on the inside of the hub. The wheel should rotate freely. (Maximum tolerance for some vehicles is only 2mm -- i.e. Rear Axle Mercedes).