Up the HP. Take your 5.0L Mustang GT's performance up a notch with more horsepower. The secret is upgrading to a Vortech V-3 Si-Trim Supercharger wwith an Air-to-Air Charge Cooler. This tuner kit features a high-output V-3 Si-Trim compressor and an integrated air-to-air charge cooler that boosts HP even more. Get as much as 775 HP on a modified Mustang! Improved Design. This Supercharger Tuner Kit for your racer or daily driver is upgraded from the original V-3 trim assembly. The "i" in Si stands for "improved," with a new patented oil control system and a cutting-edge compressor. The blower gives off less heat than the competition too, boasting 78 percent adiabatic efficiency. A polished finish completes the quality look. Please note that this particular kit does not contain fuel upgrade components. Custom Tune. Given the complexity of the installation, which takes several hours, we recommend a professional installation. Either a mechanic or service provider can provide a custom tune at the time of installation as no ECU programming software is included in this Vortech Kit. Warranty Period. Vortech includes a 3 year warranty on your new V-3 Polished Tuner Kit. As there are limits on coverage, please read the manufacturer's warranty in full. Tuner Kit. Tuner Kits include the Supercharger Head Unit, piping, mounting bracketry and parts required for basic installation. Tuner Kits do not include fuel components, electronic components, programmer or calibration. Custom dyno tuning is required for operation.Application. The Vortech V-3 Si-Trim Supercharger with an Air-to-Air Charge Cooler is made for 2015-2017 5.0L Mustang GTs. NOTE: It is not CARB legal.