SLP Underdrive-Pulley Set, 2005+ Mustang GT.
After months of research and dyno testing, our engineers have come up with what we believe to be the highest-quality underdrive-pulley set on the market for the new Mustang GT. Constructed from lightweight billet steel, this SFI-approved package offers increased power, quicker revving, and unmatched durability. Pulley set comes complete with detailed instructions.
Note: Re-uses stock belt.
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