The AST 12-15 BMW M3 F80/12-15 BMW M4 F82 Pre LCI 5300 Series Coilovers are a top-of-the-line suspension system designed for superior handling and performance. Featuring adjustable rebound and compression damping, these coilovers are perfect for street and track use. With adjustable ride height, you can dial in the perfect stance for your BMW. The 5300 Series Coilovers feature a monotube design and a corrosion-resistant zinc plating for long-term durability. These coilovers are designed to provide a smooth ride and improved handling, making them an ideal choice for enthusiasts looking to take their BMW to the next level.