Shelby Ford Mustang GT 500 Gains 53.71 HP with K&N Air Intake System

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There is a magic combination in the automotive world that combines "Shelby" and "Mustang." It is the latest hot rod pony that has a supercharged 5.4 liter engine.

Air Intake for 2008 and 2009 Ford Mustang Shelby GT-500
Air Intake for Ford Mustang Shelby GT-500

57-2571 Air Intake Installed on Ford Mustang Shelby
Air Intake Installed on Shelby Ford Mustang

K&N has designed a 63-Series AirCharger Intake System (57-2571) for the 2008 and 2009 Ford Mustang Shelby GT-500 with 5.4 liter V8 engine. Dynamometer tests show a horsepower gain of 53.71 @ 5900 RPM with this air intake.
Power Gain Chart for Ford Mustang with K&N Air Intake
Power Gain Chart for Ford Mustang with K&N Air Intake

Ford Shelby Mustang gets 53.71 Extra Horsepower with K&N
Ford Shelby Mustang gets 53.71 Extra Horsepower with K&N

"One of the reasons for such a large power gain is the large K&N Air Filter (RF-1048)," said K&N Performance Kit Manager Bert Heck. "The factory air box was restricted in size and restrictive in air flow especially at higher RPMs. We made a larger intake tube that fit nicely under the front stabilizer bar."

"The tube is oval because the throttle body was oval. This also allowed the tube cross section to be larger," said Heck. "The large horsepower gain of this air intake is also due to the radius adaptor design as it smoothly takes the 6 inch flange of the air filter and mates it with the intake tube."

It takes less than 90 minutes to install this K&N AirCharger Air Intake System to virtually eliminate air path restriction and drive a massive amount of air into your engine. K&N Air Intake Systems also come with the famous K&N Million Mile Warranty.

Find K&N products for your vehicle using the K&N application search then use the K&N dealer search to find a K&N dealer in your part of the world.

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K&N Engineering, Inc., with headquarters in Riverside, California, has been the world's leader in performance filter technology since 1969, serving the needs of the automotive, motorcycle, marine, industrial and military markets. K&N is heavily involved in nearly every form of motorsports from off-road and powersports to drag racing, stock cars and road racing. For more information about K&N Filters, please contact K&N Engineering, Inc., P.O. Box 1329, Riverside, CA 92502-1329, (800) 213-4182 for a dealer near you, (800) 858-3333 for technical service/questions, (951) 826-4001 Fax, e-mail, or visit