The JB4 is the most advanced plug-and-play tuner for the 2025+ Ram 1500 3.0L I6 Hurricane Twin Turbo — serious power without touching the ECU, with full Bluetooth monitoring and multiple built-in maps from stock to E85. Compatible with both Standard Output (SO) and High Output (HO) motors.
⚠️ Fitment — 2025+ Ram 1500 3.0L Hurricane only (SO & HO). Fits all 2025+ Ram 1500 trims with the 3.0L I6 Hurricane Twin Turbo — Warlock, Laramie, Rebel, Big Horn, Lone Star (SO) and RHO, Limited, Tungsten (HO). Does not fit the 5.7L HEMI V8.
Real Tune. No Flash. No Risk to Your ECU.
The JB4 isn't a throttle booster or a placebo — it actively adjusts boost pressure, ignition timing, air-fuel ratios, and fuel trims using real-time data through a full CANbus connection. That means gains comparable to an ECU flash, without ever touching the ECU or risking a bricked tune.
Install it, tune it, pull it — the factory ECU never knows it was there. Not VIN locked, fully transferable, fully reversible. Includes a user-adjustable "anti-lag" throttle booster for sharper turbo response and pedal feel.
Full Bluetooth Control — JB4 PRO App Included
The JB4 PRO Bluetooth adapter is built right into this kit. Connect wirelessly from your iOS or Android phone to switch maps on the fly, monitor up to 40 live engine parameters, log data, read and clear fault codes, and pull free firmware updates as Burger drops new maps.
The adapter fits entirely inside the JB4 enclosure — no dangling dongles, no exposed ports, weather-protected from the start.
Stock vs JB4 — Hurricane Dyno
Hurricane HO Dyno (click to enlarge)
Hurricane SO Dyno (click to enlarge)
Loaded With Features
Multiple maps for different fuel types — supports E85 blends
Boost-by-gear control for improved traction
Anti-lag throttle booster for sharper turbo response
Displays & logs up to 40 live engine parameters
Reads and clears fault codes
Controls exhaust flap operation on supported trims
Full CANbus integration — runs as smooth as stock
No fuel-economy hit in normal driving
Install Takes Minutes
The JB4 uses a plug-and-play harness that connects between your engine sensors and factory ECU — no cutting, no soldering, no shop visit. Pull it out just as easily if you ever need to service the truck or transfer it to a new build.
Requires 91 octane or better for performance gains. Map 0 runs on any fuel with no performance modification.
See It In Action
📦 What's in the Box
JB4 tuner unit in billet aluminum enclosure · Plug-and-play installation harness · JB4 PRO Bluetooth adapter (pre-installed) · Access to free JB4 PRO iOS/Android app · PDF install guide · 5-year warranty
Note: 91 octane or better required for performance gains. Map 0 runs on any fuel with no performance modification.
FAQ
Does one JB4 fit both SO and HO Hurricane motors? Yes. This single JB4 covers every 2025+ Ram 1500 3.0L I6 Hurricane Twin Turbo — both Standard Output (Warlock, Laramie, Rebel, Big Horn, Lone Star) and High Output (RHO, Limited, Tungsten).
What are the power gains on a stock Ram? Up to +104 wheel horsepower on a completely stock truck running pump gas (91+ octane). More with supporting mods, higher octane, or E85 blends.
Will this work on my locked ECU? Yes. The JB4 works between engine sensors and the ECU — it never accesses, flashes, or flags the ECU itself, so a locked ECU is no obstacle.
Is it reversible / will it affect my warranty? Fully reversible — unplug and remove and the truck returns to 100% stock. Not VIN locked, leaves no trace on the ECU. Consult your dealer regarding warranty; the JB4's removable nature is a key advantage.
What does the Bluetooth app do? The free JB4 PRO app (iOS/Android) lets you switch maps, monitor up to 40 live engine parameters, log data, read and clear fault codes, and download firmware updates — all wirelessly.
Do I need supporting mods? No — the JB4 delivers gains on a completely stock truck. Bolt-ons, higher octane, and E85 blends unlock more, but none are required to run the unit.
