VAC Motorsports’ Harmonic Crank Damper for the BMW S55 engine. This damper saves engines from phantom resonant vibrations, particularly experienced in vehicles being run at high revs for extended periods.

VAC’s damper setup centres around the industry-revered ATI Super Damper, which VAC have engineered into a completely bolt-on solution for the S55. These dampers eliminate nearly all unstable crankshaft harmonic vibration which allows the engine to produce more horsepower and torque, maintain reliability and ensure internal engine wear in minimised.

Easy and simply bolt-on.

• VAC’s ATI Super Dampers exceed SFI 18.1 Safety Certification and are approved for competition use
• Made in the USA
• Controls destructive harmonic forces
• Reduces bearing wear, accessory failure and oil pump failure
• Integrated lightweight VAC billet crankshaft pulleys

Please note that all kits come finished in black.