Motorsports 7" XVS , 6040 Valving Valving Identifier: 6040, Boot Included: No, Collapsed Length (IN): 13.35, Collapsed Length (MM): 339, Extended Length (IN): 20.16, Extended Length (MM): 512, Finish: Zinc Plated, Internal Design: Monotube, Lower Mount Type: 1/2in Heim, Rebound: @0.52m/s: 1895, Series: XVS Series, Upper Mount Type: 1/2in Heim, Warranty: Bilstein Limited 3 Month Warranty, Position: Front., 2 Year / 200,000 mile warranty.