OBX Racing Performance Polished Silver Pulley For: 07-10 350Z/370Z (VQ35HR) (VQ37HQ) 08-10 G37 2dr, 07-08 G35/FX35 w/ Dual Throttle Body Engine ONLY 1 Piece Designed to replace the OEM crank pulley, OBX Underdrive Crank Pulleys designed to be lighter than the stock pulley. By reducing the rotational mass, the engine uses less power to turn the crankshaft which translates into more available horsepower and torque. By utilizing the process of under-driving, parasitic drag from vehicle accessories can be minimized to free up even more power. OBX Underdrive Pulleys are a great upgrade for any driver to realize the full potential of his prized vehicle.
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