Tunable Induction Stealth Series Cold Air Intake Kit (CAI) for all 2005-2007 Ford Mustang 4.6L V8 cars! Expect +21-28 rwhp and +19-26 rwtq when used with out SCT Xcalibrator 2 tuner! (Gains vary due to octane used and transmission type) That a huge improvement over stock. See their website for full details at www.tunableinduction.com