This high-performance coil-over shock spring combination gives the tC improved handing, along with a low and aggressive appearance that’s especially well-suited to large-diameter wheels and high-performance tires. High-strength steel dampers are gas-filled and tuned by TRD to deliver a firm, yet comfortable ride. Plus, ride height is easily adjustable, allowing the tC’s front end to be dropped from 1-2 3/8 inches. Springs are high-tensile, cold-wound, shot-peened spring steel that are powder-coated TRD red, ensuring long-term corrosion protection. Spring rates are stiffened to 250 pounds/inch in front, and 400 pounds/inch in the rear—helping reduce body roll in hard cornering while providing a comfortable, compliant ride.