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Macht Schnell E9X M3 Underdrive Pulley Kit

SKU: 91.00.01X


DualDrive design allows maximum performance, with minor affect on accessory speed.
Proper cooling temperatures are retained at proper levels on or off the track.
Maintains proper alternator speed, allowing sustained levels to sensitive control modules.
Machined from 6061-T6 aerospace aluminum.
T3 Hard-Anodized for maximum strength and corrosion/wear resistance.
No affects to crankshaft dampening or harmonics.
Simple bolt-on installation