5 to 7HP gain. Your car's power steering pump is powered by a belt connected back to the crankshaft pulley.  Spinning this pulley draws precious horsepower from your engine.  NEUSPEED's powertrain engineer, using sophisticated CAD software, performed a mass properties analysis of the crank and power steering pullies.  The result is reduced parasitic drag on the engine and increased horsepower.  This kit includes new pulleys for the crank and power steering pump.