BMW 4 serie GC ECU & TCU Tuning Files
Custom BMW 4 serie GC calibration files for approved Australian workshops — typically around +66 hp and +170 Nm. Built from your stock read and data logs, for off-road and competition use.
BMW 4 serie GC — Engine Variants & Typical Gains
Every BMW 4 serie GC file is developed from the vehicle's own stock read and your declared hardware, then refined against your data logs using MHD, bootmod3, ECUtek.
| Engine variant | Power (stock → tuned) | Torque (stock → tuned) |
|---|---|---|
| M440i 374hp | 374 → 440 hp | — |
| 440i 374hp | 374 → 440 hp | 500 → 670 Nm |
| M440d 340hp | 341 → 407 hp | — |
| 435i PP 339hp | 339 → 405 hp | 450 → 620 Nm |
| 440i 326hp | 326 → 392 hp | 450 → 620 Nm |
| 435D 313hp | 312 → 378 hp | 630 → 800 Nm |
| 435d 313hp | 312 → 378 hp | 630 → 800 Nm |
| 435i 306hp | 306 → 372 hp | 400 → 570 Nm |
Tuned figures are typical estimates from this model's gains; actual results depend on variant, fuel and supporting hardware, and are verified from your logs.
Dyno-Verified BMW Results
Before-and-after results from real BMW calibrations in the tune archive.
BMW 4 serie GC Tuning Files — Common Questions
How much power can a BMW 4 serie GC gain from tuning?
Typical gains for the BMW 4 serie GC are around +66 hp and +170 Nm, developed from the stock read and verified against your data logs. Exact figures depend on the variant, fuel and supporting hardware.
Are BMW 4 serie GC tuning files custom?
Yes — every BMW file is built for the specific vehicle and its declared hardware using MHD, bootmod3, ECUtek, then refined from your logged data. We do not supply generic, off-the-shelf maps.
Do you supply BMW 4 serie GC files Australia-wide?
Yes. BMW ECU and TCU files are delivered remotely through the dealer portal to approved workshops in every Australian state and territory, for off-road and competition use.
Tuning a BMW 4 serie GC?
Register your workshop to upload the stock read and have the calibration developed and revised around your data.
