Excel-G™ Rear Driver or Passenger Side Twin-Tube Shock Absorber (3440055) by KYB®. Quantity: 1 per Pack. 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.