Upgrade your BMW N54 engine with the Supertech SPRK-FE20N54-BE Conical Spring Kit, designed specifically for the 24V 3.0L engine. This high-performance spring kit is engineered to work seamlessly with factory valve stem seals, ensuring a perfect fit and reliable function. Enhance your engine's performance while maintaining compatibility with existing components. Manufactured with precision and quality in mind, this spring kit offers improved valve control at higher RPMs, making it an essential upgrade for enthusiasts looking to maximize their engine's potential. The Supertech Conical Spring Kit not only enhances performance but also contributes to the longevity of your engine. Experience a noticeable difference in your BMW's responsiveness and power delivery with this superior spring kit. <b>Features:</b> * Designed for BMW N54 24V 3.0L engines * Compatible with factory valve stem seals * Improves valve control at higher RPMs * Enhances engine performance and responsiveness * Manufactured for durability and reliability