Massive Underdrive Light Pulley Systems

Name: Massive Speed System Massive Underdrive Light Pulley Systems - Massive Underdrive Light Pulley Systems
Brand: Massive Speed System
SKU: 32764421439569
Price: 124.95 USD
Availability: InStock
Rating: 4 (1 reviews)

4.5 (1,234)

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$124.95

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Black

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Installs in place of your factory crank pulley. Free's up some nice HP. Zetec motors are INTERNALLY ZERO balanced, meaning the factory pulley IS NOT a harmonic dampener of any kind. This means swapping the crank pulley will have NO adverse effects on engine longevity, Massive’s staff has logged literally over 500,000 collective miles with

4.0

3 ratings

Very good quality and way lighter than oem pulley. Definitely frees up horsepower you can feel noticeably. Installed on 16 fusion 2.5l and with factory belt the tensioner only had ¼" of adjustment so I switched to a 55" Duralast m Belt 550K4 belt to accommodate the larger pulley incase anyone plans on installing on a fusion.

Nolan · August 24, 2026

Massive Speed System

4.8 (193)

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4.0

3 ratings

Nolan · August 24, 2026

Massive Speed System

4.8 (193)

Massive Underdrive Light Pulley Systems

Massive Speed System

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Reviews4.0(3)

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Massive Speed System

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Reviews4.0(3)

Delivery & Returns

Massive Speed System

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