AST Suspension Lowering Springs (35mm/25mm) - 2015+ Kia Optima Sedan 1.6CRDi/1.7CRDi

The AST Lowering Springs for the 2015+ Kia Optima are high-performance suspension components designed to improve handling and aesthetics. Constructed from premium high tensile chromium-silicone wire, these springs are carefully handpicked by AST engineers for their quality and metal consistency. Each spring undergoes a rigorous manufacturing process, including cold winding, heat treatment to enhance hardness and reduce internal stresses, and individual shot peening. The phosphate treatment and powder coating ensure long-lasting durability, surpassing the lifespan of the vehicle. Featuring progressive rates on most applications, these springs provide a balanced ride quality with improved cornering stability and a lowered stance for a sportier look.

Designed specifically for the 2015 and newer Kia Optima sedans equipped with 1.6CRDi or 1.7CRDi engines, these springs are a direct replacement for factory components. They are EDC compatible, allowing for seamless integration with electronically controlled damping systems. Ideal for street performance and daily driving, the springs enhance vehicle handling without sacrificing ride comfort. Installation involves replacing the stock springs, and the kit includes the necessary components for a straightforward upgrade. These lowering springs are suited for enthusiasts seeking improved suspension performance and a more aggressive visual profile.