Bilstein AK Series Suspension Shock Absorbers are designed for motorsports applications that require the use of the OE mounting components. Each Suspension Shock Absorber features a monotube design with steel spring valve discs for consistent, fade free performance and superior durability. AK Series Suspension Shock Absorbers are ideal for racers who demand reliable performance that also meets their sanctioning body's mounting requirements. Attributes GTIN: 00651860862736 Brand Name: Bilstein Collapsed Length (MM): 333.0 Series: AK Series Extended Length (MM): 515.0 Spring Seat Included: No Rebound @0.52m/s: 1185 Body Design: Stock Mount Smooth Body Boot Included: Blue Straight Extended Length (IN): 20.28 Internal Design: Monotube Lower Mount Type: Cantilever Adjustable Damping: Non-Adjustable Collapsed Length (IN): 13.11 Body Diameter (ID): 46mm Body Material: Steel Compression @0.52m/s: 835 Upper Mount Type: Bar Pin Finish: Yellow Paint Piston Type: Digressive Extended Information Country of Origin: United States Life Cycle Status: Emissions : CARB Eligible Packing Information Quantity of Each: 1.0 Package UOM: EA Dimension: 26.8000 x 3.5500 x 3.5500 inches Weight: 4.6300 lb PDF PDF: