Cobb 13-18 Ford Focus ST / 14-19 Fiesta ST AccessPORT V3
SKU: COBBAP3-FOR-001
COBB Accessport V3 — Flash, Monitor, and Manage Your ECU
The Accessport V3 is the industry-leading OEM ECU flashing, management, and monitoring device. Unlock power hidden within the ECU by replacing conservative factory settings with proven calibrations. Expect impressive gains in torque and horsepower while maintaining a high degree of safety. The Accessport comes pre-installed with off-the-shelf (OTS) maps optimized for common performance modifications.
Flashing is just the start. A full-color screen, intuitive interface, and extensive features let you interact with your car in ways you never thought possible.
Dyno Gains*
| Map | Peak HP | Peak TQ | Max HP | Max TQ |
|---|---|---|---|---|
| Stage 1 — 91 | 2% | 19% | 4% | 23% |
| Stage 1 — 93 | 2% | 21% | 5% | 26% |
| Stage 2 — 91 | 7% | 22% | 12% | 27% |
| Stage 2 — 93 | 9% | 24% | 14% | 29% |
| Stage 3 — 91 | 13% | 33% | 21% | 39% |
| Stage 3 — 93 | 15% | 35% | 23% | 41% |
“Peak Gains” refer to the difference between the peak values of two plots. “Max Gains” are the largest improvement at any single RPM point between the two plots.

Results may vary. Power shown was tested on 2014 Fiesta ST vehicles using identical calibrations. Generally, 91-octane maps use a richer fuel curve and less aggressive ignition advance to compensate for lower-octane fuel (e.g., AZ/CA/NV) and/or harsh conditions. 93-octane maps are more aggressive.
*91 and 93 octane results are compared against a 93-octane baseline. Your 91-octane results may be higher if your 91-octane baseline reads lower than our 93-octane baseline.
* Legal only for racing vehicles which may never be used, registered, or licensed for use upon a highway.
Non-Performance Maps
Anti-Theft Mode v104
- Prevents the vehicle from running.
Economy Mode v104
- Fuel: 87–89 AKI (89 RON) minimum
- Intake: Stock
- Exhaust: Stock
- Boost: Wastegate spring pressure (~6 psi)
- Not intended for aggressive driving
Valet Mode v104
- Fuel: 87–89 AKI (89 RON) minimum
- Intake: Stock
- Exhaust: Stock
- Boost Targets: Stock
- Rev Limiter: 3000 rpm
- Speed Limiter: 35 mph (56.3 km/h)
Simple Installation
No computers, splicing, or tools required. Plug the Accessport into the OBD-II port and follow on-screen instructions to load a new performance map in minutes. The device ships with multiple OTS maps and access to a free online database for additional maps.
Change Maps Anytime
Store up to 100 maps on the Accessport and switch as needed:
| Scenario | Suggested Map |
|---|---|
| Drag strip night | High-boost performance map |
| Long highway cruise | Fuel economy map |
| Overnight in a risky area | Anti-Theft map (where supported) |
| Handing keys to a valet | Valet map |
It’s like an MP3 player for your engine: the “songs” are maps, the “volume” is your right foot.

Customizable Multi-Gauge Display
View up to six fully customizable gauges with 0.001-unit resolution. Choose layouts for street, strip, or track and monitor any ECU-reported parameter.
Gauges (Live Data)
Monitor OEM sensor data in real time without cluttering the cabin with physical gauges. Examples include:
- Throttle Position, Boost Pressure, Ignition Advance, WG Duty Cycle
- MAF, IAT, AFR, Calculated Load, Vehicle Speed
- Bypass Valve Mode, Coolant Temperature, and more
Data Logging
Record multiple channels simultaneously for up to 10 hours. Transfer logs to any PC or Mac for analysis in your favorite spreadsheet or graphing software.
Performance Measuring
Built-in timers for 0–60 mph, 60', 330', 1/8-mile (ET & MPH), 1000', and 1/4-mile (ET & MPH). Great for validating mods and improving consistency.
Rev Warning Light
Set a custom RPM and the screen flashes brightly to warn you — perfect as a shift light while still showing a live monitor.
Trouble Codes
Read and clear ECU DTCs with on-device descriptions to help diagnose issues and avoid unnecessary service visits.
Simple Uninstall
Restore the ECU to its original factory configuration with the Uninstall function. Once uninstalled, the Accessport can be used on any supported vehicle for that part number. Firmware is updatable over the internet, helping retention and resale value.
Vehicle Fitment
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2014–2015 | Ford | Fiesta | ST |
| 2013–2015 | Ford | Focus | ST |