BBK 96-01 Mustang 4.6 GT Cobra Underdrive Pulley Kit - 1555

Install 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 aluminum pulley kits for maximum horsepower gains. ALL BBK pulley kits are designed as direct bolt on replacements for the current factory pulleys and retain full cooling and charging characteristics. BBK under drive pulley kits are vehicle specific and each kit comes with complete installation instructions and allow the re-use of existing serpentine belts.

Whether its for a full rebuild or some standard maintenance, the proper engine components are needed to make sure your vehicle is running smooth.

Crank and underdrive pulleys are a main component to all engines while a serpentine belt system. The belt driven pulleys are used on water pumps, power steering systems, AC systems, and get their main source of power from the crank pulley that is connected to the crankshaft.

Many people often ask, how did the brand BBK come to be and what does BBK stand for. It's actually the initials of company founder and current CEO Brian Murphy, his best friend from high school Barry Morrison and Brian's younger brother Ken Murphy. Growing up in a small town in the northeast during the 1970's & 80's, Brian would read car magazines like Hot Rod & Car Craft and dream about Southern California and the performance industry as it was the birth place of the car culture and home of many companies such as Edelbrock & Hot Rod Magazine. Upon graduating high school in 1987, Brian convinced Barry to join him in driving out west to Southern California to start a new life and attend college. A few months later after seeing how popular the new breed of electronic fuel injected pony cars like the Mustang and Camaro had become, Brian had the idea of starting a company that would sell performance bolt ons for these new platforms. Back in 1988 the leading aftermarket companies such as Summit Racing were focused on performance for the old school carbureted muscle cars and really didn't understand Detroit's latest fuel injected platforms.

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