Supertech Mini Cooper N14B16/N18B16 Beehive Valve Spring - Single (Fits OEM Retainer / D/S Only)

This is a single Supertech beehive valve spring, designed for Mini Cooper models with N14B16 or N18B16 engines. It's built to work with the original equipment (OEM) retainer and is for the exhaust side only. Valve springs are crucial for keeping your engine's valvetrain operating correctly, ensuring that valves open and close at the precise moments needed for optimal combustion and performance.

Supertech uses a beehive design for these springs, which is known for its ability to reduce mass and allow for higher RPMs compared to traditional dual-spring designs. This can be a good choice if you're rebuilding the top end of your engine or looking for a replacement that can handle more demanding use. The spring is made from durable materials to withstand the constant stress of engine operation.