VMP Frequency sensor for 11 up Mustang GT, 5.0L, V6, GT500, Boss. Recommended for blow-through applications, turbo, Hellion, Procharger, Vortech, Centrifugal, Paxton. For ease of tuning, this MAF uses the same MAF transfer function as the 2011-2012 Shelby GT500 curve when sensor is in 3 tube allows for 700-800rwhp worth of range in a 3" tube, and more in larger tubes.