GSC Power Division Valve Spring & Ti Retainer Kit for BMW S58 Beehive Max Boo...

GSC Power Division Valve Spring & Ti Retainer Kit for BMW S58 (Beehive) — Max Boost 70 PSI Brand: GSC Power Division Engineered for high-boost S58 builds, this beehive valve spring and titanium retainer kit delivers reliable valve control, reduced valvetrain mass, and improved RPM stability up to 70 PSI of boost. Designed specifically for BMW S58 engines, it balances street drivability with track-capable performance. Key Features Beehive spring design reduces coil bind and improves valve float resistance at high RPM. Lightweight titanium retainers lower reciprocating mass for faster valve response and less wear. Precision-engineered for consistent seat and open pressures under boost, improving valve control and longevity. Complete kit includes springs and retainers sized for S58 specifications — ready for performance installs. Manufactured and tested by GSC Power Division to motorsport standards. Benefits Increased RPM confidence and reduced valve float during aggressive tuning. Improved throttle response and power delivery under high boost conditions. Longer valvetrain life due to optimized materials and design. Ideal for tuners and enthusiasts building high-boost S58 engines who want proven, race-inspired components that maintain street manners. Check fitment and install with your builder or shop before purchase.