Loading... Please wait...Upgrade your ROUSHcharged* „¢ 2005-2009 Ford Mustang GT (4.6L V8) with this Cold Air Intake Kit and unleash an additional 15 hp out of your engine, bringing the total power of your Mustang to 460hp. The kit features the ROUSH reusable air filter, air dam, ROUSH* ® PCM calibration, and induction tube.,br> This kit requires a 2005-2009 Ford Mustang GT ROUSHcharger* ® (either supercharger part #403309 or #403310). Cold Air Induction is a more efficient air intake method than the standard air filtering process. As a result, cold air induction can unleash the latent potential in power and fuel efficiency that is normally restrained by a standard air intake unit. Air first comes into the Air Dam, which keeps out hot air from the engine compartment. The result is that the air entering the filter is cooler and dense, providing for a more potent air charge. 403913