2015-2023 Ecoboost Mustang Tuning

Meet the COBB Tuning Accessport, the reliable handheld tuner that we run on our red EcoBoost Mustang. After real-world testing, the i-5Autohaus team loves it, and we believe it’s time to recommend this proven setup to fellow EcoBoost owners.
 
Why We Recommend It
User-friendly design with an intuitive interface
Plug-and-play performance you can feel immediately(Fully reversible, you can flash back to the stock ECU tune anytime) 
6 included pre-set tuning maps( Stage1/2/3) to match your build and fuel
Transforms your EcoBoost to a true Ecobeast
 
The included Pre-set ECU Flashing Tunes are: 
Stage 1 — 91 & 93 Octane Add 62HP and 76.8 lb-ft Torque( Max Gains) 
Perfect for bone-stock EcoBoost Mustangs
Compatible with:
Factory or cold-air intake
Factory exhaust or axle-back / cat-back exhaust
 
Stage 2 — 91 & 93 Octane Add 72HP and 96 lb-ft Torque( Max Gains) 
For medium modified builds
Requires:
Cold-air intake
Cat-back exhaust
One-step colder spark plugs
A Performance Intercooler is also preferred 
 
Stage 3 — 91 & 93 Octane Add 100HP and 99 lb-ft Torque( Max Gains) 
Built for serious performance (Data Logging with a Pro Tuner is highly  recommend for the safer use) 
Requires:
Straight down-pipe
Cat-back exhaust
Cold-air intake
Performance intercooler
One-step colder spark plugs
 
Our Take
If you’re looking for reliable power gains, smooth drivability, and flexibility as your build evolves, the COBB Accessport is one of the smartest upgrades you can make for your EcoBoost Mustang. Tested, trusted, and i5autohaus-approved.
 
Besides the ECU Flashing, this tuner also features: 
 
Diagnose the Check-engine light Error Code and Clear: 
Launch Control: Adjust Launch Control on the fly with 6 pre-configured RPM slots to dial in launch based on track conditions and vehicle configuration. Enabled in OTS Maps and configurable within the tuner ( 2015 - 2017 Mustang Only.)
Flat Foot Shift (MT Only): Improve shift times and keep boost built during shifts. Flat Foot Shifting can hold engine RPM at a set RPM between 3000-8000 RPM during shifting. This feature is enabled in COBB OTS maps. (2015 - 2017 Mustang Only.)
Change Different Tune Map Slot: Map switching allows for instant changes to several tables inside the vehicles calibration without having to re-flash the ECU! Each "Map Slot" is grouped into a folder found inside the Map Switching Features group. When a map slot is selected by the driver, the ECU will use the corresponding values as defined in each folder. Further Documentation can be found here.
Burnout Mode: Enabled in OTS (Off the Shelf Maps) This feature allows you to hold the car at a predetermined RPM and perform a burnout. Burnout mode prevents you from over revving the engine while performing a burnout! (2015 - 2017 Mustang Only.)
Transmission Brake and Bump Box (Transbrake): When drag racing, effective launch control features are a must-have to get the best jump off the line. Plus, ease of use and simple adjustability go along way toward provide the best chance for the driver to get the most out of the car at the beginning of a pass…where it matters most.