VAC Motorsports High Performance Valve Spring Kit, BMW S54

VAC High Performance BMW Valve Springs & Retainer Kit extract the most from your camshafts

• Dual Interference Valve Springs 

• Steel or Titanium Retainers Option 

• Rated up to 10,000 RPM with the proper engine setup

• Adds a margin of safety against over-revving or a possible mis-downshift

• Designed for maximum reliability

• Capable of handling both mild and aggressive camshafts

• Compatible with all performance camshafts

• Shot-peened for stress relief

• Dual-interference Alloy* springs to control harmonics across the rev range and reduce damage from valve-drop if a spring fails.

• All made in USA

*Alloy is a metal often used for highly stressed structural parts (such as aircraft landing gear) and also offers resistance to thermal fatigue.