MAC Underdrive Pulleys (96-Mid 01 GT, Cobra)

Free Up Horsepower. Reduce parasitic drivetrain loss by cutting down the amount of power your accessories use with a set of MAC Performance Underdrive Pulleys. MAC underdrive pulleys can free up as much as 10 horsepower, all without sacrificing cooling and charging ability of your Pony.

Quality Construction. The MAC Performance three piece underdrive pulley kit is manufactured from billet steel for superior strength, and then is completed in a gloss black powdercoat finish for durability and great under hood styling.

Application. This set of three MAC Performance Underdrive Pulleys are specifically designed for use on the 1996 to Mid-2001 GT and Cobra Mustangs.Note: For use with Long Shaft Pumps only. Midway through the production run for the 2001 model year, Ford changed the design of the water pump on the 4.6L engine. The older style pump produced from 1996 to mid 2001 had a longer shaft. In January of 2001, the design of the pump was changed to a shorter shaft. This necessitated a change in the design of the pump pulley.