Supertech Performance SPRK-2521/2BM-T1 Dual Valve Spring Kit BMW - S54 3.2L 24V

The Supertech Performance SPRK-2521/2BM-T1 is a precision-engineered dual valve spring and titanium retainer kit designed for BMW S54 24-valve 3.2L engines. This complete valvetrain upgrade kit includes 24 dual valve springs, 24 titanium retainers, and 24 valve seats, providing everything needed for a comprehensive performance overhaul.

Technical Specifications:

• Outer Spring Dimensions: 26.40mm OD, 19.30mm ID
• Inner Spring Dimensions: 19.30mm OD, 14.50mm ID
• Seat Pressure: 82 lbs @ 41mm
• Maximum Lift: 14.50mm
• Coil Bind: 25.50mm
• Spring Rate: 10.00mm
• Retainer: RET-BM2521/T1S (Titanium)
• Spring: SPR-2521/2BM-T1
• Seat: SEAT-BMS54

Premium Construction:

• Valve springs manufactured from premium super clean Chrome Silicon Vanadium Steel alloy for exceptional durability at high RPM
• Computer-designed to ensure wire stress levels remain within optimal fatigue limits
• Advanced harmonic control software used in development to prevent spring surge and valve float
• High-quality steel alloy provides superior structural memory for consistent performance
• Titanium retainers are CNC machined from military-certified titanium alloy for precision fit and reduced valvetrain weight
• Made in the United States

This kit is engineered for performance enthusiasts and racers who demand the highest quality valvetrain components. The dual spring design provides superior valve control at high engine speeds, while the lightweight titanium retainers reduce reciprocating mass for improved throttle response and higher RPM capability. Ideal for naturally aspirated and forced induction applications requiring increased valve spring pressure and reliability.