More Power. Gain up to 16 horsepower and improve your GT's throttle response with a Ford Racing K&N Air Filter and ProCal Tuner Kit. This dyno-proven kit allows your Mustang to breath better for more power you can feel. Plus it is street legal in all 50 states.

K&N Filter. K&N Drop-in Air Filters filter out harmful contaminants with it's unique layered design of cotton gauze that is sandwiched between two epoxy-coated aluminum wire screens for durability. K&N uses a specially formulated grade of oil to treat the cotton gauze layers to provide a tackiness throughout the cotton's microscopic strands creating a powerful filtering media that ensures engine protection.

50 State Legal. Unlike the competitors, this Ford Racing Filter and Tuner Kit is 50 state emissions legal under CARB EO# D-598-12.

Application. This Ford Racing Air Filter and Tuner kit is designed to fit the 2011-2014 GT Mustangs equipped with either a Manual or Automatic transmission.

Technical Note. Due to multiple power-train calibrations, online registration (with Ford Racing) is required to receive the ProCal calibration delivery tool after purchase.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov