K&N Aircharger Cold Air Kit for all 2007-2009 Shelby GT500 Mustangs.This intake provides an estimated gain of 53.71 horsepower @ 5900 RPM. K&N intake systems replace your vehicle's restrictive factory air filter and air intake housing. K&N intakes are designed to dramatically reduce intake restriction as they smooth and straighten air flow. This allows your vehicle's engine to inhale a larger amount of air than the OEM air filter assembly. More air means more usable power and acceleration throughout the engine's RPM range. The filters on these kits are washable and reusable.
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