A simple effective modification with aFe F9X M3 Power Pulleys it will increase power output. This unit is completely bold on and dyno tested that shows gains of 10 horsepower and 7 FT./Lbs of torque with the install of this pulley kit. This will not modify the factory harmonics or dampening of the engine. To give it a aggressive look it is CNC machined from billet aluminum, and anodized black. The Power Pulley Kit comes with the belts as well.
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WARNING: Cancer and Reproductive Harm
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