Ford Mustangs

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