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Roush Underdrive Pulleys - 2005-2010 Mustang GT
- Gain 8-10 horsepower
- Improved fuel efficiency
- Increased accessory (such as the alternator) life
- 25% reduction in pulley diameter over stock
- Fits 2005-2010 4.6 V8 Ford Mustang GTs
- Does not fit ROUSHcharged™ vehicles
- Part #401433
Gain more horsepower with our 25% reduction underdrive pulleys. Only fit's Mustang GTs with the 4.6L V8 engine.
NOTE: Will not work with ROUSHcharged vehicles.
Roush Performance Parts
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