DiabloSport Modified PCM and inTune i3 Programmer

2021–2023 Jeep Wrangler JL 3.6L

PKITJL363021-I3

Overview:

The DiabloSport Modified PCM and inTune i3 Programmer is a comprehensive performance upgrade solution designed specifically for the 2021 to 2023 Jeep Wrangler JL equipped with the 3.6L engine. This kit combines a preprogrammed, unlocked Powertrain Control Module (PCM) with the advanced inTune i3 handheld tuner, enabling enthusiasts to unlock additional horsepower and optimize their vehicle’s performance. Ideal for Jeep owners seeking enhanced throttle response, increased power, and customizable tuning options, this kit provides a seamless way to elevate your Wrangler’s driving experience.

With this package, you gain the ability to adjust fuel maps, ignition timing, and transmission parameters, all while maintaining reliability and drivability. The inTune i3 programmer offers a user-friendly interface with a full-color touchscreen, making it easy to select tunes, monitor data, and clear diagnostic trouble codes.

Key Features:

This performance kit is packed with features that make tuning your Jeep Wrangler straightforward and effective:

• Preprogrammed Modified PCM unlocked for DiabloSport tuning devices
• inTune i3 handheld programmer with full-color touchscreen and WiFi update capability
• Performance tunes for 87, 91, and 93 octane fuels included
• Performance Transmission Control Module (TCM) tune for the 8-speed automatic transmission
• Supports custom tuning through DiabloSport’s CMR software for advanced users
• Ability to add 15-20 rear wheel horsepower on premium fuel
• Reads and clears diagnostic trouble codes (DTCs) with datalogging functionality
• Multi-license capability allows use on multiple vehicles
• 5 Volt data logging inputs for detailed engine monitoring
• OEM replacement PCM with removal and installation support videos available

Construction & Design:

The Modified PCM is engineered to meet or exceed OEM standards, ensuring reliable operation and compatibility with your Jeep Wrangler’s engine management system. Built with durable components and programmed for optimal performance, the PCM is unlocked to accept DiabloSport’s tuning files without compromising factory safety features. The inTune i3 programmer features a rugged ABS plastic housing designed for handheld use, with a responsive full-color touchscreen that simplifies navigation through tuning menus and data logs. Its WiFi capability ensures your device stays current with the latest software updates.

Performance & Sound

By installing the DiabloSport Modified PCM and utilizing the inTune i3 programmer, Jeep Wrangler owners can expect a noticeable increase in horsepower and torque, particularly when using premium fuel. The included performance TCM tune enhances shift quality and responsiveness of the 8-speed automatic transmission, contributing to a more engaging driving experience. While this kit primarily focuses on engine and transmission performance, the improved throttle response and optimized fuel delivery can also contribute to a more aggressive and refined exhaust note under acceleration.

Installation & Fitment:

This kit is designed as a direct replacement for the factory PCM in 2021–2023 Jeep Wrangler JL models with the 3.6L engine. Installation requires removal of the stock PCM, which must be backed up using a tuning device before removal to preserve your original calibration. The Modified PCM comes preprogrammed for your specific vehicle, allowing for a straightforward plug-and-play installation. Detailed removal and installation videos are available on DiabloSport’s YouTube channel to assist with the process. No additional modifications are necessary, making this an accessible upgrade for enthusiasts with basic mechanical skills.

What's Included:

• DiabloSport Modified PCM preprogrammed for your Jeep Wrangler
• inTune i3 handheld programmer (Part Number 8345)
• Preloaded performance tunes for multiple octane ratings
• Performance TCM tune for 8-speed automatic transmission
• Instruction manual and access to online installation resources

Ideal For:

This kit is perfect for Jeep Wrangler JL owners who want to unlock additional horsepower and torque without sacrificing reliability or drivability. It suits enthusiasts looking for a plug-and-play tuning solution with the flexibility to customize and monitor engine parameters. Whether you’re a weekend warrior, off-road adventurer, or daily driver seeking improved performance, the DiabloSport Modified PCM and inTune i3 Programmer provide a balanced upgrade that enhances your vehicle’s capabilities.

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 that have adopted CARB regulations. Please check local laws and regulations before purchasing or installing this product.

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.