Cobb Ford 2020 F-150 3.5L EcoBoost AccessPORT V3

Flash Your 2020 F-150 3.5L EcoBoost for Real Performance Gains

The COBB AP3-FOR-007 AccessPORT V3 is the world's best-selling ECU flash tuner engineered specifically for the 2020 Ford F-150 3.5L EcoBoost. By replacing the factory's conservative calibration with COBB's proven Off The Shelf maps, the AP3-FOR-007 unlocks meaningful gains in horsepower, torque, and drivability right out of the box. This unit also supports combined ECU/TCM flashing on 2020 F-150 trucks where the engine and transmission controllers are integrated into a single unit, letting you fine-tune both power delivery and shift behavior in one flash. This part carries a CARB Executive Order (EO) number D-660-23 and is legal for sale and use on emissions-controlled vehicles in all 50 states.

Key Features

• COBB AP3-FOR-007 flashes both ECU and TCM simultaneously on 2020 F-150 combined-unit platform
• Stage 1 91 Oct map delivers up to +13.16% peak horsepower and +18.77% peak torque
• Stage 1 93 Oct map delivers up to +15.65% peak horsepower and +20.65% peak torque
• Stage 2 93 Oct map delivers up to +18.01% peak horsepower and +23.79% peak torque
• Performance Tow maps optimized for towing with gains up to +12.71% HP and +10.13% TQ
• Full-color high-resolution LCD screen monitors up to 6 live ECU parameters simultaneously
• Stores up to 100 maps from COBB's OTS database or your custom tuner
• Data logging records up to 10 hours across multiple channels directly from the PCM
• Built-in performance calculator measures 0-60 mph, 60-foot, quarter-mile ET, and trap speed
• Reads and clears diagnostic trouble codes without a dealer visit
• COBB Custom ECU features: disable Auto Start/Stop, Dynamic Pedal Control, Valet Mode, tire size adjustment, fuel pump activation
• Interchangeable bezels and thousands of standard dash mount options for a clean install
• Fully reversible with one-touch Uninstall that restores your factory calibration exactly
• Compatible with COBB Accesstuner software for fully custom professional tunes
• CARB EO D-660-23 compliant, legal in all 50 states

Fitment

Specifications

What's Included

• COBB AccessPORT V3 tuner unit (AP3-FOR-007)
• OBD-II connection cable
• Dash mount with hardware
• Interchangeable faceplate
• Quick-start documentation
• Pre-loaded OTS map library for 2020 F-150 3.5L EcoBoost

Frequently Asked Questions

The AP3-FOR-007 is designed exclusively for the 2020 Ford F-150 equipped with the 3.5L EcoBoost engine (standard output). It does not fit the High Output 3.5L EcoBoost found in the 2020 Raptor, and it is not compatible with 2017-2019 F-150 models (those use AP3-FOR-006) or 2021 and later F-150 models.

Yes. Starting with the 2020 model year, Ford combined the ECU and TCM into a single control unit. The AP3-FOR-007 flashes one map that covers both engine and transmission calibration simultaneously. You can select from COBB OEM+, COBB Sport, or Simulated Stock transmission maps to adjust shift points, shift firmness, torque limits, and skip-shift behavior.

Results depend on octane and modification stage. On a stock 2020 F-150 3.5L EcoBoost, Stage 1 on 91 octane delivers peak gains of +13.16% HP and +18.77% TQ with max curve gains up to +30.80% in both. Stage 1 on 93 octane sees +15.65% HP and +20.65% TQ peaks. Stage 2 maps push those figures even higher when supporting bolt-on modifications are installed.

Yes. The AP3-FOR-007 carries California Air Resources Board (CARB) Executive Order number D-660-23, which makes it legal for sale and use on emissions-controlled vehicles in all 50 states when used according to COBB's application guide.

Ford cannot legally void your entire powertrain warranty simply because you used an aftermarket tune. However, if a dealership can demonstrate that the tune directly caused a specific failure, that component may not be covered under warranty. You can uninstall the AP3-FOR-007 at any time using the built-in Uninstall function, which restores your factory calibration exactly as it was.

Yes. The AccessPORT V3 can be used as a live multi-gauge display at any time, whether a tune is loaded or not. It reads up to 6 ECU parameters simultaneously including boost pressure, intake air temperature, coolant temperature, and more. You can also use it to read and clear diagnostic trouble codes without flashing any map.

Stage 1 maps are designed for completely stock, unmodified trucks and deliver immediate gains on 91 or 93 octane fuel. Stage 2 maps are optimized for trucks with supporting bolt-on upgrades such as a high-flow air intake or upgraded intercooler, and they produce higher peak and curve gains than Stage 1. Always match your map selection to your actual modifications and fuel octane.

Yes. Any COBB Accesstuner Pro tuner can write a fully custom calibration to the AP3-FOR-007. The unit stores up to 100 maps, so you can keep OTS maps and multiple custom tunes on the device at the same time and switch between them on the fly without a laptop.

Yes. The unit captures and stores up to 10 hours of multi-channel data directly from the truck's PCM. Logs can be downloaded to a PC or Mac via the free AP Manager software for review and analysis. This is particularly useful for diagnosing issues or verifying the effectiveness of modifications during dyno runs or track sessions.

Installation Instructions

1. Ensure the truck is parked with the ignition off and the key removed before beginning installation.
2. Locate the OBD-II port under the driver-side dash panel and plug in the COBB OBD-II cable.
3. Route the cable to your preferred mount location along the A-pillar or dash area using the included hardware and any cable management clips.
4. Attach the AccessPORT V3 to the included dash mount and secure the mount to your chosen location.
5. Turn the ignition to the ON position (do not start the engine) and power on the AccessPORT V3.
6. Follow the on-screen prompts to identify your vehicle and unlock the ECU. Note: the 2020 F-150 requires a one-time ECU unlock process.
7. Select your desired OTS map from the pre-loaded library based on your fuel octane and modification level.
8. Follow the on-screen flashing instructions. Do not turn off the ignition or disconnect the device during the flash process.
9. Once flashing is complete, restart the truck and verify normal operation before driving.
10. Use the COBB AP Manager software on a PC or Mac to update firmware and download additional maps as needed.

WARNING: This product can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov.