COBB Accessport for Toyota 4Runner i-FORCE MAX (2024+)
The Accessport is the world's best-selling, most flexible, and easiest-to-use ECU upgrade solution for your Toyota. Unlock power hidden within the vehicle by replacing conservative factory settings with more aggressive calibrations. Follow our staged upgrade path with pre-loaded Off The Shelf (OTS) maps or use custom mapping for any modification level. It's the last engine management solution you'll ever need.
This version of the Accessport includes the capability to flash the TCM, which is the unit that controls the transmission. It includes various Off The Shelf transmission tunes which adjust shift points, shift firmness, skip shift behavior, and torque limits to fit your preferred driving style.
This Accessport includes a Gateway Bypass Harness. To use it, connect the harness to your vehicle’s OBD-II port, the Gateway connector, and then to the Accessport. The Gateway Bypass Harness enables ECU communication in situations where the Accessport would otherwise be ignored—such as during initial installation, when dumping an unsupported vehicle ROM file, or when recovering from a failed flash. It is not required for map changes or uninstalling the Accessport. Installation instructions are available HERE.
SKU: AP3-TOY-005
Key Features
Off-The-Shelf (OTS) Maps: Preloaded calibrations designed for stock and lightly modified vehicles. Improve throttle response, power delivery, and overall drivability using common bolt-on configurations.
Custom Tuning Ready: Fully supports professional dyno or remote tuning. Ideal for upgraded turbos, injectors, fuel systems, or aggressive performance goals.
Live Data Monitoring & Logging: View critical engine parameters in real time and record high-resolution data logs to support diagnostics, tuning refinement, and long-term reliability.
Portable & Reversible: Flash your ECU through the OBD-II port and return the vehicle to stock when needed—no permanent modifications required.
Fitment
2025 Toyota 4Runner i-FORCE MAX AT USDM
What’s in the box
- COBB Accessport V3 Handheld Device
- USB Cable
- OBDII Cable
- Mounting Hardware
- Preloaded OTS Maps
Shipping & Returns
We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible.
We are committed to ensuring a positive shopping experience for all our customers. If for any reason you wish to return an item, we invite you to reach out to our team for assistance, and we will evaluate every return request with care and consideration.