K&N Filter System Adds 53.7 HP To Shelby GT500

March 7th, 2007 by CobraMatt

This new air intake system from K&N adds a mind boggling 53.71 horsepower to the allready potent Shelby GT500.  The K&N 63-series AirCharger intake system was developed specifically for the GT500’s 5.4 liter V8 engine.  K&N claims the horsepower gains are no BS and they have the dyno numbers to prove it.  Installation for this air intake system can be done in under 90 minutes and can usually be done by most fifth graders, if you can’t install this then you have bigger problems.

“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.”

This K&N air intake system comes with their famous Million Mile Warranty.