Fitment Information Hyundai Elantra SR Only (2017, 2018, 2019, 2020, 2021) Specs & Features Whiteline Springs deliver improved vehicle performance whilst maintaining safety and ride quality characteristics. This kit contains 2.4kg/mm (134lb/in) front rated springs that provide a 25mm drop while the 2.0kg/mm (112lb/in) rated rears deliver a desirable 25mm to the vehicle.  Product Description Made In Europe Manufactured in Europe from the highest quality material. Progressive Also known as variable rate, progressive rate springs are designed to provide improved performance without compromising ride quality characteristics. They do this by keeping the initial spring rate low (for a smooth ride) but increasing the rate progressively as the spring compresses (for improved performance). Precision Engineered for superior fit/performance with OEM shocks while produced to the finest tolerances ensuring exact fitment Cold Rolled Engineered for superior fit and performance with OEM shocks. Produced to the finest tolerances ensuring exact fitment Warranty Backed by a limited lifetime warranty