Ride Comfort may be important, but restoring a vehicles Ride Control, stability, stopping, lane change responsiveness and handling is critical. KYB Excel-G Shocks and Struts are designed for the most important performance purpose: Restoring the vehicles original capabilities. KYB is a world leading supplier of shocks and struts to new vehicle manufacturers and the Excel-G is made on the very same KYB OE assembly lines, uses the same OE quality components and is calibrated to restore original, designed performance, not change it. That has earned Excel-G the classification: OEA (Original Equipment for the Aftermarket). The KYB Excel-G is a nitrogen gas-charged, twin-tube design that includes every quality component that our global OEM products include and it is the preferred choice by professional technicians. KYB recommended OEM replacement strut The KYB Excel-G helps restore the designed control and handling of your GM car The KYB Excel-G uses a triple lip fluid seal to reduce the chance of oil and gas leaking out Vehicle specific, hand assembled, in-house damping valves correctly manage tire contact, steering response and body movement Electronic safety systems depend on the suspension, brakes and tires operating as the vehicle manufacturer intended. The KYB Excel-G helps keep Electronic Safety Systems performing as designed. KYB has the strongest and thickest strut bodies and brackets in the industry; minimizing flex to maintain correct alignment in all conditions To reduce the chance of noise and vibration KYB recommends installing new strut mounts, part number: SM5057 Protect your new struts from dirt, debris and salt with a KYB Strut Boot, part number: SB104 Package Dimensions: 20.079 x 9.055 x 9.055 inches Package Weight: 14.11 lb Package Quantity: 1 UPC: 781552360070 B-stop: N Compressed Length: 11.73 Dust Cover Included: N Extended Length: 18.66 Country of Origin: JP