Stage 3 Adaptive OBD2 Performance Chip for RAM - Plug-In Module (+40 HP / +45 TQ)
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- Guaranteed Fitment
- Free Shipping, Lower 48 States
- Lifetime Warranty
Programmed and shipped within 24 hours. Most orders arrive in 3-5 days within USA
Stage 3 Adaptive OBD2 Performance Chip for RAM
★ 4.7/5 from 35 RAM Stage 3 reviews · Lifetime Replacement Warranty · Warranty-safe: unplugs for stock settings · Will not harm your engine
See dyno-proven results · Read customer reviews · Questions? Call 1-877-763-2804
Plug-in performance module for RAM cars, trucks and SUVs with an OBD2 port (1996 and newer). Stage 3 is our strongest setup: up to +40 HP and +45 lb-ft on turbocharged engines. No flashing, no ECU unlock, no app.
Rated 4.7/5 by 35 verified buyers | Lifetime warranty | 30-day returns | Ships within 24 hours, most orders arrive in 3-5 days | Assembled in the USA, programmed in house for your vehicle
Choosing your engine size and options
Pick the three options above, then type your make, model and year in the "Enter Make, Model, Year" box right under them.
Engine Size (common RAM engines):
- 4 Cylinder: 2.4L (ProMaster City)
- 6 Cylinder: 3.6L Pentastar V6, 3.0L EcoDiesel V6, 5.9L / 6.7L Cummins I6
- 8 Cylinder: 4.7L V8, 5.7L / 6.4L HEMI, 6.2L supercharged (TRX)
- 10 Cylinder: 8.0L V10
Engine Modifications (If any): Stock Vehicle, Intake, or Intake and Exhaust, to match what's on your vehicle now.
Tuned for: Performance for the full Stage 3 setup; MPG for a smoother, economy-focused setup if you mostly cruise.
Not sure? Contact us before ordering.
What to expect
- Quicker throttle response. Less of that dead spot when you roll into the pedal from a stop or to pass.
- More midrange pull. Merging, passing, climbing a grade with a load.
- Doesn't change your drive modes. Your factory drive modes stay as RAM set them up.
- Realistic gains. It's a plug-in module, not a full ECU re-flash. Up to +40 HP / +45 lb-ft on turbocharged engines; non-turbo engines gain less. (Stage 1: +20 HP / +25 lb-ft; Stage 2: +30 HP / +35 lb-ft)
How it works
The module plugs into your OBD2 port and works alongside the factory engine computer. It's adaptive: it reads how you're driving, from throttle position to fuel demand, and adjusts its output to match. Easy cruising stays smooth; get on it or tow and it gives you more. Nothing inside the engine computer is rewritten. Each chip is programmed in house for the make, model and year you enter and the options you pick.
Install in about a minute
- Find the OBD2 port under the dash on the driver's side.
- Engine off, connect the module with the included plug-in cable (long enough for any vehicle).
- Turn the key. The PWR, LNK and DAT LEDs confirm it's connected. Drive normally for a few trips.
Dealer visit or recall? Unplug it first and your RAM is stock.
100% safe and warranty friendly
The module works within safe limits for your engine and leaves the factory programming untouched.
- Lifetime warranty on the module.
- 30-day returns. If it's not for you, send it back.
- Ships within 24 hours; most orders arrive in 3-5 days.
- Assembled in the USA and programmed in house for your vehicle.
- In the box: the module (with PWR / LNK / DAT LEDs) and a plug-in OBD2 cable.
- Questions? Contact us and a real person will answer.
Common Questions
Will it fit my RAM?
If it has an OBD2 port (1996 and newer), yes: 1500, 2500, 3500, ProMaster, ProMaster City and more. Pick your Engine Size and enter your make, model and year when you order.
How much power will I actually get?
Up to +40 HP and +45 lb-ft on turbocharged engines. Naturally aspirated engines gain less. You'll feel it most as sharper throttle and stronger midrange.
What does "adaptive" mean?
It watches throttle position and fuel demand and adjusts. Light cruising stays smooth; hard acceleration and towing get the full Stage 3 output.
Does it work on diesels?
Yes. Under Engine Size, pick 6 Cylinder for the 5.9L or 6.7L Cummins and for the 3.0L EcoDiesel.
Will the dealer know?
Unplug it before service and your RAM is completely stock. Nothing stays behind in the engine computer.
Why does the module say JDM PROM?
JDM PROM is the brand name on the module and its retail box. Every unit is programmed in house for your specific RAM make and model, assembled in the USA, and backed by our lifetime warranty and 30-day return window.
Frequently Asked Questions
How do I install it?
It plugs straight into the OBD2 port under the dashboard, usually near the steering column. No tools, no wiring, and no need to pop the hood.
Fitment
Fitment
Warranty
Warranty
