Accessport V3 ECU Upgrade

The Cobb Tuning Accessport V3 is an ECU upgrade solution designed for the 2015-2021 Subaru WRX and STI, the 2014-2018 Forester XT, and the 2019-2020 Ascent. It provides platform-specific OTS maps developed for each engine's unique boost control, fueling system, and factory parameters, ensuring optimal performance without adaptation between applications. Flashing an OTS map can be completed in under three minutes. This device enables monitoring of up to six live parameters on its 2.8-inch color touchscreen, including boost, AFR, IAT, and coolant temperature. It also features high-speed data logging capabilities, capturing critical engine data like knock counts, fuel trims, and ignition timing, which is essential for ProTuner custom calibrations. The Accessport V3 can also read and clear standard OBD-II fault codes. Lifetime firmware and map updates are included free of charge. The Accessport V3 serves as the foundation for further modifications. For the EJ257 STI, specific OTS maps support Cobb's NexGen Stage 2 boost control strategy, allowing for higher boost targets when paired with compatible hardware. The Forester XT and Ascent also receive dedicated maps tailored to their specific characteristics, distinct from WRX adaptations. Included with the Accessport are two interchangeable colored faceplates and a universal in-vehicle mount, with over 1,000 additional mounts available separately.