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K&N 63-2578 5.0 out of 5 stars 1 Customer Review
63 Series Aircharger Kits > Performance Intake Kit

 List Price: $662.86
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63-2578
 
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The K&N AirCharger 63-2578 air intake system replaces the restrictive factory air filter and air intake housing in some Ford Mustang GT models. K&N intakes are designed to dramatically reduce intake restriction as they smooth and straighten air flow. This allows your Mustang’s engine to inhale a larger amount of air than the factory air filter assembly. More air means more usable power and acceleration throughout the engine’s RPM range. The 63-2578 air intake comes with a K&N high-flow air filter and a light-weight carbon fiber heat shield lid that directs cooler air into the custom molded intake for a guaranteed power gain. The oversized air filter can be used for up to 100,000 miles before servicing is needed depending on driving conditions. This air intake is relatively easy to install using commonly available tools. This air intake cannot be sold in California. It is not legal for use in California or other states adopting California emission standards.

[More Information on AirCharger Air Intakes]
  • Guaranteed horsepower gain
  • Designed to improve throttle response and engine sound
  • Free-flowing high density polyethylene tube
  • Great looking and light weight carbon fiber heat shield
  • Not legal for highway use in states adopting California emission regulations
  • Lasts up to 100,000 miles before service is required (depending on driving conditions)
  • Easy to install, usually in 90 minutes or less
  • K&N Million Mile Limited Warranty
Available Information
Installation Instruction Sheet
63-2578 Vehicle Applications
Dyno Chart - 2012 Ford Mustang GT 5.0L 20.27HP Increase
Video Installation Video
News Story - 2011, 2012 and 2013 Ford Mustang GT 5.0L Models Get Estimated 20 Extra HP with K&N


Part 63-2578 Product Specifications
Product Style: 63 Series Aircharger Kits
Estimated Horsepower Gain: 20.27 HP @ 5400 RPM
Replacement Filter: RF-1048
Air Filter Color: Red
Air Filter Outlet Shape: Round
Street Legal In All US States: No
Air Filter Height: 6 in (152 mm)
TUV Approved (Europe): No
Air Filter Material: Cotton Gauze
Clamps Included: 5
Clamp Material: Stainless Steel
Clamp Style: Regular
Couplers Included: 2
Mass Air Flow Sensor Adapter Included: Mass Air Flow Sensor Adapter Included When Required
Intake Pipe Color / Finish: Black
Intake Pipe Ports: All intake tube ports needed for the specified applications are included
Vacuum Tubing Included: No
California Restricted: Not legal for sale or use in California
Weight: 10.1 lb (4.6 kg)
Product Box Length: 24.1 in (612 mm)
Product Box Width: 15.5 in (394 mm)
Product Box Height: 14.5 in (368 mm)


Horsepower gains based on similar vehicle dynamometer test. Results will vary.


Product Reviews      Review part 63-2578

 I was very impressed with the ease of ordering on the website and how fast my item was shipped. My Performance Intake Kit has added so much horsepower to my 2013 Mustang Gt and I am so happy with my purchase, I did not think it would make such a difference but it really made my car that much faster.
Dawn Galati, Wyandotte, Michigan