BMW S65 Valve Springs by SuperTech

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SuperTech’s high-performance valve spring kits are precision-engineered for BMW S65 engines, delivering superior valve control and reliability under high-stress conditions. These k its include all necessary components for installation and are a direct replacement for BMW part numbers 11347837681, 11347835154, and 11347838295. Built to withstand the demands of high-lift camshafts in the E90 / E91 / E92 / E93 M3, these valve springs are made from premium materials, ensuring optimal performance and longevity. With increased spring rates, they provide enhanced valve stability and control compared to OEM springs, minimizing the risk of valve float at high RPM. SuperTech's dedication to quality and precision makes these kits a preferred choice among engine builders seeking to achieve peak performance with unwavering reliability. Rate: 10.3lbs/mm Spring Top OD: 21.6 mm Spring Bottom OD: 26.50 mm Coil Bind: 27 mm Installation requires the expertise of an engine builder. BMW S65 Applications: BMW 3 Series 2007 - 2011 BMW E90/E92/E93 M3 Show more