Description
How would you like to get tuned?
ECU MAIL-IN Ship your ECU to us in Japan. Bench flash & return — the standard route for this platform. | $1,999 | CONTACT |
IN-PERSON Arranged individually — contact us for details. | $1,999 | BOOK |
REMOTE This ECU platform is not OBD-flashable via AT One. Ask us about remote options. | ASK | CONTACT |
Porsche 991 GT3/GT3 RS — Custom ECU Tune
Developed in Tokyo by mbFAST Tuning. Available worldwide via ECU mail-in, or in-person.
| VARIANT | STOCK hp / Nm | mbFAST hp / Nm | GAIN | REMOTE |
|---|---|---|---|---|
| 911 GT3 3.6i | 415 / 405 | 435 / 430 | +20 / +25 | Mail-in |
| 911 GT3 3.8i | 435 / 430 | 455 / 450 | +20 / +20 | Mail-in |
| 911 GT3 RS 3.8i | 450 / 430 | 470 / 470 | +20 / +40 | Mail-in |
| 911 GT3 3.8i | 475 / 440 | 500 / 470 | +25 / +30 | Mail-in |
| 911 GT3 | 500 / 460 | 525 / 485 | +25 / +25 | Mail-in |
| 911 GT3 | 510 / 450 | 530 / 470 | +20 / +20 | Mail-in |
What’s included
- Custom ECU calibration built for your exact vehicle — no generic files
- Worldwide service via ECU mail-in, or in-person by arrangement
- Pops & bangs (afterfire) available on select platforms — ask us
- Stock file backup & free revisions during setup
Exact calibration details are proprietary. Figures vary by fuel, condition and options.
FOR TUNING SHOPS
Install this Porsche 991 GT3/GT3 RS tune for your customers — we supply the calibration files and remote support. Your shop, our data.
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