Let the 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.

Retainers available in Steel Alloy or Titanium