Remote ECU tune · 3.7L Cyclone DOHC V6
A custom Stage 1, 2 or 3 calibration for your Ford Mustang V6 3.7, 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 Ford Mustang V6 3.7 makes 305 hp and 280 lb-ft (380 Nm). A Stage 1 tune typically adds 15–22 hp and 20–30 lb-ft, for around 320–327 hp in total. With bolt-ons and a Stage 2 calibration that grows to +25–40 hp, and a Stage 3 build — adding a supercharger or other forced induction, with the fuelling to support it — typically lands at 455–480 hp.
| Stage | Added power | Added torque | Total power | Total torque |
|---|---|---|---|---|
| Stock | — | — | 305 hp | 280 lb-ft (380 Nm) |
| Stage 1 | +15–22 hp | +20–30 lb-ft (+27–41 Nm) | 320–327 hp | 300–311 lb-ft (407–421 Nm) |
| Stage 2 | +25–40 hp | +25–40 lb-ft (+34–54 Nm) | 330–345 hp | 305–320 lb-ft (414–434 Nm) |
| Stage 3 | +150–175 hp | +100–140 lb-ft (+136–190 Nm) | 455–480 hp | 381–420 lb-ft (516–570 Nm) |
Typical gains from published dyno results; your car will vary with fuel, mods and conditions.
Tuner's notes
The naturally aspirated 3.7 Ti-VCT gains about 18-22 hp at the wheels from a 93-octane tune, mainly through timing and cam-phasing changes. Bigger numbers need boost;
Supported versions
HP Tuners lists 2 Ford Mustang V6 3.7 entries covering 2005–2017, with 3.7 and 4.0-litre engines. Interface: MPVI2 or newer.
| Years | Model / engine as HP Tuners lists it | Controller | Credits | Unlimited licence | Interface |
|---|---|---|---|---|---|
| 2005–2015 | Mustang 3.7, 4.0 | Engine | 2 | 12 | MPVI2/2+/3/4 |
| 2016–2017 | Mustang 3.7 | Engine | 2 | — | 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 engine ECM is recalibrated for the Ford Mustang V6 3.7 as it sits today — spark, fuelling, throttle response and limiters — against the datalog you send.
For a Ford Mustang V6 3.7 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 Ford Mustang V6 3.7 means adding a supercharger or other forced induction, with the fuelling to support it. 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 15–22 hp and 20–30 lb-ft (27–41 Nm) over the stock 305 hp, for around 320–327 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 engine ECM 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 Ford Mustang V6 3.7 means adding a supercharger or other forced induction, with the fuelling to support it. The maps are written from scratch for your build, and typical results are 150–175 hp over stock. Typical gains from published dyno results; your car will vary with fuel, mods and conditions.
