Remote ECU tune · 6.7L Cummins I6 turbo-diesel (CM2350)
A custom Stage 1, 2 or 3 calibration for your RAM 2500/3500 6.7 Cummins (2013-2018), built by hand by a real tuner from your own stock file and datalog, and back with you within three hours of the file arriving. We tune these cars remotely, worldwide: you read and flash with your own HP Tuners interface, and you pay only once the tune is delivered.
Stock vs tuned
From the factory the RAM 2500/3500 6.7 Cummins (2013-2018) makes 370 hp and 800 lb-ft (1,085 Nm). A Stage 1 tune typically adds 30–60 hp and 36–72 lb-ft, for around 400–430 hp in total. With bolt-ons and a Stage 2 calibration that grows to +60–100 hp, and a Stage 3 build — maximum-effort tune with intake and exhaust upgrades — typically lands at 470–500 hp.
| Stage | Added power | Added torque | Total power | Total torque |
|---|---|---|---|---|
| Stock | — | — | 370 hp | 800 lb-ft (1,085 Nm) |
| Stage 1 | +30–60 hp | +36–72 lb-ft (+49–98 Nm) | 400–430 hp | 836–873 lb-ft (1,134–1,183 Nm) |
| Stage 2 | +60–100 hp | +72–144 lb-ft (+98–195 Nm) | 430–470 hp | 873–944 lb-ft (1,183–1,280 Nm) |
| Stage 3 | +100–130 hp | +144–180 lb-ft (+195–244 Nm) | 470–500 hp | 944–980 lb-ft (1,280–1,329 Nm) |
Typical gains from published dyno results; your car will vary with fuel, mods and conditions.
Tuner's notes
Stock figure is the 68RFE output (370 hp / 800 lb-ft); G56 manual trucks are rated 350 hp / 660 lb-ft and Aisin trucks 385 hp / 865 lb-ft.
Supported versions
HP Tuners lists 1 RAM 2500/3500 6.7 Cummins (2013-2018) entry covering 2013–2018, with 6.7-litre engines, diesel versions included. Interface: MPVI2 or newer.
| Years | Model / engine as HP Tuners lists it | Controller | Credits | Interface |
|---|---|---|---|---|
| 2013–2018 | 2500/3500/4500/5500 6.7 Cummins (Diesel) (CM2350) | Engine | 4 | MPVI2/2+/3/4 |
Support data per HP Tuners' supported-vehicle list (June 2026). Check your exact car on HP Tuners' vehicle list before you buy credits.
Stages & prices
One flat price per stage, the same for every car: $250 for Stage 1, $450 for Stage 2 and $650 for Stage 3. Ordering is free and you pay only once the finished tune is delivered. 2 free revisions are included with every order. Gearbox (TCM) shift tuning is included wherever your car's transmission controller can be accessed.
Software only. Every map in the CM2350 is recalibrated for the RAM 2500/3500 6.7 Cummins (2013-2018) as it sits today — spark, fuelling, throttle response and limiters — against the datalog you send.
For a RAM 2500/3500 6.7 Cummins (2013-2018) with bolt-ons fitted — intake, exhaust, headers or downpipe, and an intercooler where the car has one. The airflow and fuelling are rebuilt around the hardware you actually have.
Stage 3 on the RAM 2500/3500 6.7 Cummins (2013-2018) means maximum-effort tune with intake and exhaust upgrades. The fuel, spark and boost maps are written from scratch for your exact combination.
Typical gains from published dyno results; your car will vary with fuel, mods and conditions.
Before you order
How it works
FAQ
Typically 30–60 hp and 36–72 lb-ft (49–98 Nm) over the stock 370 hp, for around 400–430 hp in total. Typical gains from published dyno results; your car will vary with fuel, mods and conditions.
An HP Tuners interface (we recommend the MPVI4), the HP Tuners credits needed to license the CM2350 for writing, and your stock file plus a datalog of a drive. You read and flash the car yourself; we build the calibration.
Your custom tune is delivered within three hours of your stock file arriving. Six tuners work three shifts, so a file that lands in the middle of the night is picked up just as fast.
Stage 1 is $250, Stage 2 is $450 and Stage 3 is $650, flat. Ordering is free and you pay only once the finished tune is delivered. 2 free revisions are included with every order.
Stage 3 on the RAM 2500/3500 6.7 Cummins (2013-2018) means maximum-effort tune with intake and exhaust upgrades. The maps are written from scratch for your build, and typical results are 100–130 hp over stock. Typical gains from published dyno results; your car will vary with fuel, mods and conditions.
