AST Suspension Lowering Springs (30mm/30mm) - 2011-2015 Kia Optima 1.7CRDi/2.4 (TF)

The AST Suspension Lowering Springs for the 2011-2015 Kia Optima (TF) are high-performance coil springs designed to lower the vehicle's ride height by 30mm. Crafted from premium high tensile chromium-silicone wire, these springs are engineered for durability and consistent performance. Each spring undergoes a meticulous manufacturing process, including cold winding, heat treatment to enhance hardness and reduce internal stresses, followed by shot peening, phosphate treatment, and powder coating to ensure long-lasting corrosion resistance. The progressive rate design on most vehicles provides improved handling, stability, and a sportier stance, making them suitable for enthusiasts seeking both performance and aesthetic upgrades.

These lowering springs are specifically engineered for the Kia Optima models from 2011 to 2015, compatible with 1.7CRDi and 2.4 engine variants. They serve as direct replacements for stock springs, offering a lowered ride height that enhances cornering and overall vehicle dynamics without compromising ride quality. Installation is straightforward, typically bolt-on, and intended for street and performance driving. The kit includes the set of springs, with no additional components required. Ideal for daily drivers and enthusiasts aiming to improve handling and appearance, these springs deliver a reliable upgrade with a focus on longevity and performance.