DiabloSport Modified PCM and inTune i3 Programmer Kit

2021 Ram 1500 5.7L V8 with 8-Speed Automatic and E-Torque

PKITDR57ET21-I3

Overview:

The DiabloSport Modified PCM and inTune i3 Programmer Kit is a comprehensive performance upgrade solution designed specifically for the 2021 Ram 1500 equipped with the 5.7L V8 engine, 8-speed automatic transmission, and eTorque system. This kit combines a pre-programmed modified Powertrain Control Module (PCM) with the versatile inTune i3 handheld tuner, allowing enthusiasts to unlock additional horsepower and torque while customizing vehicle parameters for an optimized driving experience.

Ideal for Ram 1500 owners seeking enhanced throttle response, improved power output, and greater control over engine and transmission functions, this kit delivers significant performance gains without sacrificing reliability or drivability. The plug-and-play nature of the modified PCM eliminates vehicle downtime typically associated with tuning, making it a convenient upgrade for daily drivers and performance enthusiasts alike.

Key Features:

This performance kit offers a wide range of tuning capabilities and features tailored to maximize the potential of your 2021 Ram 1500:

• Preloaded modified PCM programmed specifically for the 2021 Ram 1500 5.7L with eTorque and 8-speed automatic transmission
• inTune i3 handheld programmer with color touchscreen for easy tuning and diagnostics
• Adds 25-30 rear wheel horsepower on premium fuel for noticeable power gains
• Adjustable throttle response for a more responsive and engaging pedal feel
• Removal of the vehicle’s top speed limiter to unlock higher speeds
• Multiple fuel octane tunes included: 87, 91, and 93 octane for flexible fueling options
• Performance transmission control module (TCM) tune for optimized 8-speed automatic shifting
• Disable Multi-Displacement System (MDS) for full-time V8 operation
• Adjustable rev limiter in drive and neutral by ±500 RPM
• Ability to disable traction control and electronic stability program (ESP) for track or off-road use
• Speedometer calibration for tire sizes ranging from 20” to 44” to maintain accurate speed readings
• Wide-open throttle (WOT) fuel and spark adjustments for fine-tuning air/fuel ratios and ignition timing
• Data logging capabilities with 5-volt inputs for advanced diagnostics and custom tuning

Construction & Design:

The modified PCM is engineered with precision to meet the exact specifications of the 2021 Ram 1500’s powertrain, ensuring seamless integration and reliable performance. Housed in a durable ABS casing, the unit is designed to withstand the rigors of automotive environments. The inTune i3 programmer features a bright, full-color touchscreen display housed in a rugged, handheld enclosure that is both portable and user-friendly.

DiabloSport’s tuning software is developed with advanced calibration strategies to optimize engine and transmission parameters while maintaining safety and drivability. The kit includes all necessary bypass modules and cables to facilitate a smooth installation and tuning process.

Performance & Sound

With this kit installed, expect a noticeable increase in horsepower and torque, particularly when using premium fuel. The enhanced throttle response and removal of the top speed limiter provide a more aggressive and exhilarating driving experience. Disabling MDS ensures the V8 operates continuously, delivering a richer engine sound and more consistent power delivery. Transmission tuning improves shift quality and responsiveness, contributing to overall performance gains.

Installation & Fitment:

Installation is straightforward with no vehicle downtime required. The modified PCM comes pre-programmed to your specific vehicle, allowing for a direct swap with the factory PCM. It is critical to save your stock calibration using the inTune i3 programmer before removing the original PCM, as outlined in the included instructions. The inTune i3 device connects easily to the vehicle’s OBD-II port for tuning and diagnostics without the need for additional tools or modifications.

What's Included:

• DiabloSport Modified PCM programmed for 2021 Ram 1500 5.7L eTorque
• inTune i3 handheld programmer (Part Number 8345) with preloaded performance tunes
• Required bypass module or cable for installation
• Instruction manual detailing installation and tuning procedures

Ideal For:

This kit is perfect for Ram 1500 owners who want to enhance their truck’s performance without compromising reliability or daily drivability. It suits enthusiasts looking to increase horsepower, improve throttle response, and customize engine and transmission settings. Whether for towing, hauling, or spirited driving, this kit provides a versatile and effective upgrade.

Emissions Note

This product is not CARB (California Air Resources Board) compliant and is not legal for sale or use in California or other states adopting CARB regulations. Please check local laws before purchasing.

DiabloSport makes handheld tuners and ECU tuning solutions aimed at unlocking additional performance and improving drivability for many late-model domestic trucks and muscle cars. Their devices and supported tuning ecosystem are commonly used to optimize engine and transmission calibrations after mods like intakes, exhaust, or gearing changes.