Enhance the performance of your engine with the GSC Power Division 1041 Viton 6.6mm Valve Stem Seal Kit, designed specifically for D16 and H23 engines. This high-quality seal kit ensures a perfect fit and optimal sealing capability, allowing your engine to run smoothly while preventing oil leaks and maintaining compression. Crafted from durable Viton material, these seals are resistant to high temperatures and oil degradation, making them ideal for high-performance applications. The GSC Power Division 1041 kit provides exceptional reliability and longevity, so you can focus on achieving maximum performance from your engine. Upgrade your valve system with this seal kit to improve engine efficiency and durability. With easy installation and precision engineering, this kit is a must-have for any serious automotive enthusiast looking to enhance their engine's capabilities.