BBK Under Drive 6-Rib Serpentine Pulley Kit - Polished Aluminum - Ford Modular - Ford Mustang 1996-2001 33009P Works with the following Racepak

Works with the following Racepak data loggers and dashes: Sportsman

maximum pressure is 14 psi

1968-1971 Lincoln Mark III

1979-1987 Buick Riviera

1-1/8 in Piston

BBK Under Drive 6-Rib Serpentine Pulley Kit - Polished Aluminum - Ford Modular - Ford Mustang 1996-2001 33009P Works with the following RacepakInstall a set of BBK performance underdrive pulleys and see an average of 8 15 additional horsepower over the stock pulleys. Under drive pulleys increase engine output by reducing the draw of the engines accessories by slowing them down and reducing the HP they use. Additional and significant performance improvements can be seen by reducing the weight of the pulley versus the original pulley which is why we recommend the BBK CNC Machined billet