Description
WIRELESS ADAPTER IS INCLUDED
Fits: 2025+ RAM 1500 & RHO with 3.0L I6 Hurricane Twin Turbo — compatible with both SO and HO motors
Up to 104 wheel horsepower gain on a completely stock RAM 1500 on pump gas. The JB4 is the most advanced plug-and-play tuning system available for the Hurricane engine — no laptop required, no dealer visits, not VIN-locked. Install it in your driveway, remove it without a trace, and resell it later.
Compatible Vehicles
- 2025+ RAM 1500 Warlock — 3.0L I6 Hurricane SO Twin Turbo
- 2025+ RAM 1500 Laramie — 3.0L I6 Hurricane SO Twin Turbo
- 2025+ RAM 1500 Rebel — 3.0L I6 Hurricane SO Twin Turbo
- 2025+ RAM 1500 RHO — 3.0L I6 Hurricane HO Twin Turbo
- 2025+ RAM 1500 Limited — 3.0L I6 Hurricane HO Twin Turbo
- 2025+ RAM 1500 Tungsten — 3.0L I6 Hurricane HO Twin Turbo
JB4 Features & Benefits
- Up to 104 whp gain on a stock vehicle on pump gas — more with bolt-ons, higher octane, or larger turbos
- Improves 0–60 and 1/4 mile times
- Up to 8 preloaded maps for various fuel and modification levels
- Ethanol (E85) compatible tuning maps
- Boost by gear control (1st, 2nd, 3rd) via JB4 app for improved traction
- Progressive water/methanol injection support
- Built-in data logging — view and record up to 40 gauges/engine parameters in real time
- Built-in fault code reading and deletion
- CANbus OBD-II integration for unrivaled tuning features
- Compatible with all driving modes
- Fuel economy unchanged during normal driving
- Quick plug-and-play installation — no wiring, no cutting
- Not VIN-locked — remove without a trace and resell later
- Rugged billet aluminum enclosure
- Made in the USA — 5-year warranty
- 91 octane or better required for performance gains
Wireless Smartphone Connection — JB4 PRO App
DYNO Results
3.0L I6 Hurricane HO Twin Turbo
2025 RAM Hurricane SO — Stock vs JB4 Tuned
Install & Review Videos
2025 RAM RHO Install Video
2025 Ram RHO JB4 Tuner
Tuning a RAM RHO: Faster than a TRX?
JB4 on Map 1, 2 & 3 — 2025 RAM RHO
Installing the JB4 on a 2025 Ram 1500 RHO
2025+ RAM SST SO Hurricane JB4 Install — Performance, Cost & Drivability
What is a JB4?
The JB4 is a plug-and-play tune that installs between your truck’s sensors and its ECU, manipulating performance through advanced connection points including CANbus, fuel & spark control, and Bluetooth. Unlike basic piggyback tunes, the JB4 offers ongoing free firmware and map updates, smartphone integration, and is sold in over 67 countries. Not VIN-locked — swap it between vehicles or resell it anytime.
