Dinan Underdrive Pulley Kit | BMW M5 (06-10) (D560-0001) YMM_2004_2009_Audi_A4_B7 Sprung disks can be used

Sprung disks can be used with the OEM flywheel or aftermarket lightweight flywheels

Includes high-strength

enhancing boost response and ensuring reliable operation under demanding driving conditions

Made from high-quality steel for durability and long-lasting performance

Dinan Underdrive Pulley Kit | BMW M5 (06-10) (D560-0001) YMM_2004_2009_Audi_A4_B7 Sprung disks can be usedThe Dinan 06 10 BMW M5 Underdrive Pulley Kit is a performance upgrade designed to enhance engine efficiency and power output. Crafted from lightweight billet aluminum, this pulley underdrives each accessory by 13 percent, reducing parasitic drag and improving overall engine responsiveness. By decreasing the load on the crankshaft, it delivers an estimated 6 horsepower and 4 lb ft of torque gains at 8000 RPM on a stock vehicle. The kit retains the