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3.3" 6-rib pulley ring for 05-10 Mustang GT 4.6L 3V with Roush R2300 / P51 TVS Supercharger kit. 10psi with stock lower pulley. Booster required Large improvement in power over This pulley bolts on to the Roush 6-bolt hub. Black annodized aluminum.

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VMP Performance

VMP Performance is a leading U.S.-based tuner and manufacturer offering top-tier supercharger kits, tuning services, and performance parts designed for Ford Mustangs, F-150s, GT500s, and more. With extensive expertise in TVS supercharger systems, VMP delivers dramatic power increases—often exceeding 500–1,100 rear-wheel horsepower—without compromising drivability or reliability. Their offerings include complete bolt-on kits, cold air intakes, fueling components, pulleys, cooling upgrades, and custom tuning backed by technical support and dyno validation.

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