BMW M4 / M4 Competition (G82/G83)

BMW M4 G82/G83

Custom ECU Tune

$1,499.00

Stage

Horsepower 620HP
480 HP +140
FactoryMomentum Tuned →
Torque 600LB-FT
405 LB-FT +195
FactoryMomentum Tuned →

[ Optional Add-Ons ]

Email us about this tune
  • Houston shop in Sugar Land
  • Remote flash anywhere in the US
  • Custom file for your engine, mods and fuel
  • We confirm fitment before anything is written

Before you buy

  • We confirm your engine, existing mods and fuel before any file is written. If your car cannot be calibrated, nothing is written and the order is refunded.
  • Calibration files are built for your vehicle and cannot be returned once delivered. Parts follow the 30-day return policy.
  • Emissions rules differ by state and country. Compliance where the vehicle is driven on public roads is the owner's responsibility.

How your tune happens

  1. Order and confirm Add the tune to your cart or request a consultation. We confirm your exact year, engine and any hardware already on the car before anything is written.
  2. Flash method Depending on the platform, the tune loads through the OBD port with a handheld flasher we ship to you, or the ECU is unlocked once on the bench at our Sugar Land shop. The brand notes below say which applies to your car.
  3. Calibration Your file is built for your engine, fuel (91 or 93 octane) and hardware. Stage 2 files assume downpipes are installed; if yours are not, the downpipes for your car are listed on this page.
  4. Datalog and revise After the first drive we review logs and adjust. Revisions during the break-in period are included.
  5. Support Return to stock is always available. Questions before or after: email us and we will get back to you.

Most 2016 and newer BMWs (B48, B58, S55, S58, N63 and S63 engines) flash through the OBD port. Newer G-series cars with locked MG1 or MD1 ECUs need a one-time unlock on the bench at the shop, after which future updates go through the port. Stage 1 is software only on stock hardware. Stage 2 is calibrated for high-flow or catless downpipes and needs them installed. A transmission (TCU) tune is optional and adds faster shifts and raised torque limits on the ZF8 and DCT boxes.

Stage 2 is written for downpipes; the ones for your car are listed below