KYB 733013 AGX Gas Strut Adjustable performance, designed for enthusiasts Can be adjusted to add up to 125% more damping force on your Mazda RX-8 Externally adjustable without lifting the vehicle or removing the tires Features precision multi-stage hydraulic valves for a broad performance range Uses a seamless working cylinder matched with a Teflon coated piston band for a positive seal and longer life