Compatible with 2021 Dodge Charger R/T 5.7 SRT 6.4L and Chrysler 300

Part Number: PKITCHARV821-I3

The DiabloSport Unlocked PCM is required to unlock tuning capability for 2021 Dodge Charger models equipped with the 5.7L or 6.4L HEMI engines. From the factory, these cars are equipped with locked PCMs that block aftermarket tuning, but this modified unit provides the foundation needed to load performance tunes and unleash the true power of your HEMI. When paired with a DiabloSport inTune i3 or Trinity T2 Platinum programmer, you’ll gain access to dyno-tested calibrations that deliver horsepower and torque gains of 25–30 RWHP, sharper throttle response, smoother transmission behavior, and all-around improved drivability. It also enables user features such as speedometer calibration for larger tires, disabling MDS, and refining shift characteristics for street or strip. ⚠️ Important Note: A DiabloSport tuning device (sold separately) is required to load performance tunes. Modified PCMs are not compatible with other tuning brands. On 2021+ models, you must save your stock calibration with your tuner before removing the factory PCM, as outlined in the included instructions. For Charger HEMI owners looking to break free of factory restrictions, the DiabloSport Unlocked PCM is the first step toward unlocking real power and drivability gains. NOTE: YOU MUST SAVE YOUR STOCK CALIBRATION WITH YOUR TUNING DEVICE BEFORE REMOVING THE STOCK PCM FROM THE VEHICLE. PLEASE REFER TO THE INSTRUCTIONS THAT COME WITH YOUR UNLOCKED PCM.

Features and Benefits

• 2021 Charger 5.7/6.4
• 93 Octane Diablo Tune and 91 Octane Tune provided for engine
• Performance TCM tune for 8 speed TCM included
• Gain up to 20 rwhp and 18 rwtq (25 on 6.4L) on 93 octane
• Adjust for tire size 20-44:
• Remove speed limiter
• Adjust fan temps 150-230 degrees
• Adjust idle speed +/-400 rpm
• Adjust rev limiter in drive or neutral +/-500 rpm
• Set throttle sensitivity 1-20%
• WOT fuel 1-7K +/-10%
• MBT spark 1-7K +/-10%
• Control MDS on/off
• Set traction control on/off
• inTune 3 packed with preloaded tunes and end user adjustments
• Full color touch screen device
• WiFi update capability
• Multi-license capability
• Datalogs to i3 or stream to DV2 software
• Reads/clears DTCs
• Includes PCM Preprogrammed for your vehicle
• Unlocked for use with DabloSport devices
• OEM replacement
• Removal/Installation videos available on our YouTube channel

NOTE: YOU MUST SAVE YOUR STOCK CALIBRATION WITH YOUR TUNING DEVICE BEFORE REMOVING THE STOCK PCM FROM THE VEHICLE. PLEASE REFER TO THE INSTRUCTIONS THAT COME WITH YOUR UNLOCKED PCM.