Post #1
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New Tuning File Available: Ford Focus ST 2.5 Turbo Stage 1 ECU Tuning File – CM5A-14C204-ARG (MED17) CM5A-12A650-ARF - Stage 1 tuning file for Ford Focus ST 2.5 Turbo with Bosch MED17 — stronger pull and refined delivery
Welcome to the official discussion thread for the Ford Focus ST tuning package. This calibration is specifically developed for the MED17 ECU and optimized to work seamlessly with the 6M.
Share your experience!
Have you flashed this file? Drop your dyno graphs, 0-100 times, reviews, or ask any technical questions below!
➜ Download Tuning File / View Full Specs
Discussion & Reviews: Ford Focus ST#
Welcome to the official discussion thread for the Ford Focus ST tuning package. This calibration is specifically developed for the MED17 ECU and optimized to work seamlessly with the 6M.
Share your experience!Have you flashed this file? Drop your dyno graphs, 0-100 times, reviews, or ask any technical questions below!
Dyno-developed for off-road and motorsport use only. End user is responsible for compliance with emission laws in their region.
Extended Product Information#
- Stage 1 ECU remap for Ford Focus ST 2.5 Turbo with Bosch MED17
- Boost and ignition maps recalibrated for stronger midrange pull
- Throttle response improved without affecting low-speed comfort
- Maintains fuel economy in cruising zones
- OEM safety limits preserved — no hardware upgrades required
- Checksum corrected using Plugin OLS807 v3.32 (Bosch MED17/EDC17)
- Includes original stock binary for backup or comparison
- Tested in dyno-controlled environment
- For motorsport/off-road use only — ensure local compliance
➜ Download Tuning File / View Full Specs
