Supertech Performance RET-BMS65-BE1-40 Titanium Valve Spring Retainer Set BMW S65/S85 - 40 Piece Kit

These lightweight titanium retainers are essential components for engine builders looking to maximize valve train performance and achieve higher engine RPM capabilities.

Key Features:

• Precision-machined from high-grade titanium for exceptional strength and minimal weight
• Designed to work with Supertech beehive valve springs (SPR-BMS65-BE1 series)
• Reduces reciprocating mass in the valve train for improved high-RPM performance
• Essential upgrade for head rebuilds, performance camshaft installations, and racing applications
• Compatible with BMW M3 (E90/E92/E93 S65) and BMW M5/M6 (E60/E63/E64 S85) engines

Supertech Performance is a leading manufacturer of high-performance valve train components for motorsports applications including drag racing, road racing, and rally. When rebuilding your engine's cylinder head or upgrading to higher-lift camshafts and performance valve springs, upgrading to titanium retainers helps reduce valve train weight and allows the engine to safely rev higher while improving throttle response and overall performance.