K&N Air Intake for 2007-2012 Ford Mustang Shelby 5.4L Gains Estimated 53.7 Horsepower

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The muscled up Shelby Mustang is a glory ride back to the days of Ford’s Total Performance period. Forty years later Ford and Shelby have remarried. The new Mustang is striped as a salute to its illustrious past.

K&N's air intake system for 2007, 2008, 2009, 2010, 2011 and 2012 Ford Mustang Shelby 5.4L
K&N's air intake system for 2007, 2008, 2009, 2010, 2011 and 2012 Ford Mustang Shelby 5.4L

Ford Shelby Mustang gets estimated 53.7 extra horsepower with K&N air intake system
Ford Shelby Mustang gets estimated 53.7 extra horsepower with K&N air intake system
K&N Engineering has designed a performance air intake system (57-2571) that is street legal in 50 states for 2007, 2008, 2009, 2010, 2011 and 2012 Ford Mustang Shelby with the 5.4 liter V8 engine. K&N dynamometer testing shows an estimated 53.7 horsepower gain at 5900 rpm.
K&N air intake kit installed on 2007 Shelby Ford Mustang
K&N air intake kit installed on 2007 Shelby Ford Mustang

Power gain chart for Ford Mustang Shelby with K&N air intake system
Power gain chart for Ford Mustang Shelby with K&N air intake system

One of the reasons for such a high increase in horsepower is the large free-flowing K&N chrome top air filter (RF-1048). The factory air box is restricted in size and restrictive in air flow especially at higher RPMs. K&N designed a larger intake tube that fits nicely under the front stabilizer.

The tube is oval because the throttle body is also oval. This design means the cross section is larger. The estimated 53.7 horsepower gain is also aided by the radius adaptor's design as it smoothly takes the 6 inch flange of the air filter and mates it with the air intake tube.

The heat shield isolates the filter element from the heat of the engine which results in an immediate flow of cooler air for additional power. It takes less than 90 minutes to install this K&N air intake system. This intake will eliminate much of the air path restriction and let your engine breathe freely. K&N air intake systems come with the famous K&N Million Mile Limited 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 tech@knfilters.com, or visit www.knfilters.com.

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