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The Accessport is the leading ECU upgrade solution for Toyota vehicles, offering unmatched flexibility, ease of use, and performance gains. It unlocks hidden power by replacing conservative factory calibrations with performance-focused tuning. Choose from pre-loaded Off-The-Shelf (OTS) maps within a staged upgrade path or utilize custom tuning for any level of modification. It’s designed to be the only engine management tool you’ll ever need.
This version also supports flashing the transmission control module (TCM) for automatic-transmission models. It includes a variety of OTS transmission calibrations that refine shift points, shift firmness, skip-shift behavior, and torque limits to better match your preferred driving style.
Manual-transmission Tacoma models are now supported as well. Please note that OTS maps are not currently available for MT vehicles; tuning must be performed by a qualified Protuner.
A Gateway Bypass Harness is included with this Accessport. This harness connects to the vehicle’s OBD-II port and Gateway connector, allowing the Accessport to communicate with the ECU in situations where it would otherwise be blocked—such as initial setup, unsupported ROM extraction, or recovery after a failed flash. It is not required for normal map changes or for uninstalling the Accessport.
Warning: Installing this Accessport over anything other than OEM or COBB-based software may cause ECU or TCU damage. Contact COBB Support if you need clarification before installation.