Protect your BMW M52 or M54 I6 engine from harmful torsional vibration with a Fluidampr viscous damper designed for high-performance street, drifting, autocross, and road racing applications. Increased torque, RPM and rotating assembly changes can reduce the effectiveness of stock elastomer-style dampers. Fluidampr viscous damping technology helps control crankshaft harmonics across the entire RPM range to support long-term engine durability, accessory drive stability and reduced wear on critical components.Application Summary: 1996-2000 BMW 3/5 Series E36/E37/E46/E39 M52 I6. 2001-2006 BMW 3/5/X/Z Series E36/E37/E38/E46/E39/E83/E85 M54 I6.Fitment Note: Does not fit 2001-2006 BMW M3 (S54 engine)