2021 Charger, Challenger and 300 5.7L/6.4L Now Supported!

DiabloSport Tuning Now Available For 2021 Charger, Challenger AND 300 5.7L and 6.4L Hemi!

Bring your Hemi Powered car to a new level! DiabloSport now offers a full line of tuning options for the 2021 Dodge Charger and Challenger and Chrysler 300 with the 5.7L and 6.4L Hemi. We apply our expertise in Hemi tuning to these vehicles, which allows us to provide an even more enjoyable driving experience. More power, improved throttle response, better shifting behavior and overall increased performance are among the benefits of tuning with DiabloSport. Once again, DiabloSport brings you Power You Can Feel!

Whether you are looking to eek out every last tenth at the dragstrip, or simply enjoy your car as a daily driver, there are improvements to be had through tuning. DiabloSport does the hard part for you, by developing clean, powerful tunes for 91 and 93 octane fuels. Then we give you a host of user defined options, like the ability to disable the top speed limiter or recalibrate the speedometer for different tire sizes. Looking for every last drop of performance? Built in datalogging allows you to see data, like timing or knock retard,  by viewing the logs on our Dataviewer PC software,  No matter what you do with your Charger, Challenger or 300, DiabloSport offers a tuning product to fit your needs!

All 2015 and newer Dodge/Chrysler/Jeep/Ram applications require an unlocked PCM before tuning. We make this easy with multiple options, including tuners that include a PCM swap, or kits that include a new, unlocked PCM for your car. No matter which option you refer, we’ve got you covered!

Available Tunes:

  • 93 Octane Diablo Tune
  • 91 Octane Tune
  • Performance TCM tune

Features and Options:

  • Tire Size Adjustment – 20”-44”
  • Speed Limiter – On/Off
  • Throttle Booster – 1-20%
  • Target Fan Temps – 150-230 Degrees
  • Idle Speed Adjust – +/- 400 RPM
  • Rev Limiter Drive/Neutral – +/- 500 RPM
  • WOT Fuel Adjustment – 1-7K +/- 20%
  • MBT Spark at WOT – 1-7K +/- 10
  • WOT Spark – 1-7k +/- 10
  • MDS – On/Off
  • Traction Control – Enable/Disable





2021 5.7 Charger tune results on 93 Octane fuel:

5.7L Hemi dyno results 93 octane Diablo Tune

2021 6.4 Charger tune results on 93 Octane fuel:

charger 6.4L Hemi diablo tune results on 93 octane