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- These CNC Billet Aluminum underdrive pulleys fit all 2001 & UP 4.6 liter Mustangs.
- Each kit includes alternator, water pump and crankshaft pulleys and have been dyno-proven to yield approximately 15 horsepower!!!
- The way these pulleys work is by slowing down the front accessories, which rob the engine of horsepower, which in turn means more horsepower to the rear wheels
- All kits include all hardware and instructions for a simple installation.
- Item usually ships out of our warehouse in: 1-2 days
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