The Eibach Pro-Kit Lowering Spring Kit improves Audi TT RS handling with a lowered stance. Made from high-tensile steel, this set of four springs lowers the coupe by ~1.0 inch, enhancing cornering and aesthetics. Designed for TT RS models, it offers progressive rates for a sporty ride. Installation requires compatible shocks and alignment. Powder-coated for durability, it includes a limited lifetime manufacturer warranty.