Accessport ECU Upgrade

The COBB Tuning Accessport V3 is a versatile ECU upgrade solution designed for Subaru Ascent (2023-2026), Outback XT/Wilderness (2023-2025), and Legacy XT Sport (2023-2025) models. This device functions as a hand-held programmer that enables you to flash your vehicle's ECU with updated calibrations, thereby unlocking performance potential by replacing conservative factory settings with more aggressive tunes. It offers a staged upgrade path, allowing you to utilize pre-loaded Off-The-Shelf (OTS) maps or custom mapping for various modification levels. Beyond its tuning capabilities, the Accessport serves as a comprehensive gauge package. It features a large, full-color, higher-resolution screen capable of displaying up to six parameters in real time, such as boost levels. The interface is customizable, allowing you to configure the layout for race, street, or dyno gauge clusters, and offers interchangeable bezels. The device also includes features for reading and clearing engine trouble codes, preventing potentially costly dealership visits. For performance enthusiasts, it offers a suite of measurement tools, including 0-60 mph time, 1/4 mile ET, and trap speed, as well as a customizable shift light. The Accessport can also be easily uninstalled, reverting the ECU to its original state. For managing maps, datalogs, and updates, the Accessport Manager software is available for PC and Mac. Additionally, it supports the COBB Subaru CAN Gateway / Flex Fuel Upgrade, which measures ethanol content and relays that data to the ECU for Flex Fuel calibrations. It's important to note that installation of this Accessport over any software other than OEM or COBB software may lead to ECU/TCU failure, and the device is compatible with USDM vehicles only. Flex Fuel products, packages, and maps are not available for 2026 models at this time.