2021 Mustang GT 5.0L Tuning Support is Here!

2021 Mustang GT support from DiabloSport

Let your 2021 Mustang GT run free with DiabloSport Tuning!

DiabloSport has been tuning Mustangs as long as anyone else. The 3rd Gen Coyote is a true monster, especially when paired with the 10 Speed Automatic. Ford has indeed delivered a truly capable muscle car, but there’s always more to be had! Tuning is the key to unlocking additional performance from any late model application. The 2021 Mustang GT is no exception to that rule. Solid gains in HP/TQ combine to deliver performance improvements. You can drop up to 3 tenths of a second and gain 3 MPH in the 1/4 mile! Installation is easily performed in your driveway. No additional tools are required and you’ll be done in under 5 minutes!

Support is available across our tuner lineup, including the T2, i3 and P2 devices. The Trinity 2 and Intune i3, devices are feature rich and offer you a tremendous value. In addition to preloaded tunes for your application, with T2 and i3 you get a host of useful features. DTC read/clear, WiFi updating and Multi License capability are a few such examples. Trinity 2 is an amazing on dash monitor device. A must for anyone who wants to keep an eye on their Mustangs vitals. InTune i3 provides a great handheld interface, without the monitoring aspect. If you are after an entry level device for loading tunes, Predator 2 has what you need!

Tunes for 91 and 93 octane are provided. The provided tunes not only offer increased power, but offer updated shift maps in all modes. The Improved A10 calibrations are a big part of the performance gains. Optimized Torque Modulation allows for maximum performance at all times. We spend countless hours on the dyno developing these calibrations. This allows us to deliver you safe, and repeatable tunes, with Power You Can Feel!

5.0L V8 Performance Levels

93 Octane Tune – 20 HP and 38 LB-FT of TQ

91 Octane Tune – 15 HP and 30 LB-FT of TQ


  • WOT Fueling Adjustments*
  • WOT Spark Adjustments*
  • Global Spark Adder
  • MAF Curve*
  • Cooling Fan Control*
  • Rev Limiter
  • Intake/Exhaust WOT Cam Timing*
  • Adjust Tire Size
  • Gear Ratio
  • Disable Speed Limiter
  • Shift Point Adjustment*

*Not all options available on all devices, please configure your vehicle to see specific features and options for each device!

SEE Predator 2 for FORD!
SHOP i3 for FORD!


2021 Mustang GT 93 Octane Tune Dyno Results: