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Get back the power and torque your belt-driven accessories steal. Bolt on 8-10 horses with Steeda’s underdrive pulleys. These pulleys slow down your accessories about 25%, reducing the drag on your engine. They can even bump up gas mileage. These pulleys are manufactured from billet steel, exceeding factory quality. The crankshaft pulley uses a high-tech injection molded bonded rubber damper, making it far more durable than any other underdrive pulley on the market.


Get back the power and torque your belt-driven accessories steal

The Stewart EMP Performance water pump fills an industry void for a high performance water pump for the 4.6L engine.  Also perfect as a cost effective original equipment replacement upgrade, these pumps are available in both long and short versions fitting either of the two or four-valve 4.6 Mustang power plants.


The Stewart EMP Performance water pump fills an industry void fo

Venting the gas from super heated brake pads improves overall brake performance. Of the various venting methods, slotting has the clear advantage.


Venting the gas from super heated brake pads improves overall br

Venting the gas from super heated brake pads improves overall brake performance. Of the various venting methods, slotting has the clear advantage. Slotting, unlike drilling, is not prone to cracking.


Venting the gas from super heated brake pads improves overall br