Compatible with 2021 RAM 1500 - 5.7L 8-Speed Automatic with E-Torque

Part Number: PKITDR57ET21-I3

The DiabloSport inTune i3 + Unlocked PCM Kit is the complete performance solution for 2021 Ram 1500 trucks equipped with the 5.7L HEMI eTorque system. Factory PCMs on these models are locked, preventing traditional tuning, but this kit includes everything needed to safely unlock your Ram’s true potential. Preloaded with dyno-tested calibrations, the inTune i3 delivers gains of up to 30 rear-wheel horsepower over stock, along with noticeable improvements in torque output, throttle response, and 8-speed transmission behavior. The result is a Ram that pulls harder, shifts smoother, and responds instantly to your right foot—perfect for both towing and everyday driving. The Platinum i3 also supports CMR custom tuning, giving you the flexibility to have dyno-proven calibrations built for bolt-ons or advanced modifications. Built-in data logging ensures your setup can be optimized as your truck evolves. User-friendly features include MDS disable, speedometer calibration for larger tires, and adjustments to refine drivability to your preference. This performance kit includes the inTune i3 handheld programmer (PN 8345) and a DiabloSport Modified PCM, shipped via a one-time cross-shipment for a simple, hassle-free installation. For 2021 Ram 1500 eTorque owners who want horsepower, torque, towing strength, and sharper drivability, the inTune i3 + Unlocked PCM Kit is the upgrade your HEMI deserves. NOTE: ON 2021+ MODEL YEAR VEHICLES, 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 Ram 1500 5.7 eTorque
• Add 25-30 rwhp on premium fuel
• Adjust throttle response fo roptimal pedal feel
• Remove vehicle top speed limiter
• Adjust idle RPM
• Tunes for 87, 91 and 93 octane fuel included
• Performance TCM tune for 8 speed transmission included
• Includes PCM programmed to your vehicle and inTune 3!
• No vehicle downtime for tuning!
• Preloaded with multiple performance tunes
• Read/clear DTC codes
• Disable MDS for full time V8 operation!
• Adjust Rev Limiter in Drive/Neutral by +/- 500 RPM
• Disable Traction Control/ESP
• Raise or Lower Idle Speed by +/- 400 RPM
• Required bypass module or cable is included
• Speed Limiter On/Off enabling increased top speed
• Target Cooling Fan temps can be set from 150°-230° for use with cooler t-stat
• Tire Size Adjustment 20”-44”, allows for correcting speedometer for different tires
• WOT Fuel Adjustment – 1-7K RPM +/- 20%, allows for fine tuning Air/Fuel Ratio
• WOT MBT Spark 1-7K RPM +/- 10
• WOT Spark – 1-7k RPM +/- 10