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The COBB Tuning Accessport V3 AP3-HON-001 is the premier ECU tuning interface for the 2017–2021 FK8 Honda Civic Type R. Engineered to unlock hidden horsepower and torque from Honda’s turbocharged K20C1 engine, this device elevates performance beyond conservative factory calibrations with optimized power maps and advanced diagnostic tools. Designed with a high‑resolution color screen and intuitive on‑screen instructions, the Accessport allows you to easily flash performance maps, monitor real‑time data, log sessions, and measure performance metrics — all from a user‑friendly in‑cabin interface.
With support for off‑the‑shelf (OTS) Stage0 and Stage1 maps tuned for common octane fuels, the Accessport delivers noticeable gains in both low‑end torque and top‑end power. Whether your Civic Type R remains stock or is enhanced with aftermarket hardware, the Accessport serves as both a performance tuner and advanced diagnostic tool. Firmware unlock tools are included for 2020–2021 models so you can take full control of your ECU without additional unlock fees, enabling tuning anywhere with the simple OBD‑II connection.
Installing the Accessport with COBB’s Off‑The‑Shelf Stage1 calibrations for the Honda Civic Type R delivers measurable increases in horsepower and torque compared to stock ECU tuning. These gains come from more aggressive boost pressure, refined fueling, timing adjustments, and optimization of engine functions to better use what the K20C1 platform can produce.
Peak gains represent the highest elevated power and torque values reached at any engine speed, while “max” gains indicate the largest single‑point improvement over stock. These results translate to stronger mid‑range acceleration, more usable power at part throttle, and a markedly more engaging driving experience. Results will vary based on fuel quality, atmospheric conditions, and vehicle condition.
This specific Accessport model is designed exclusively for the 2017–2021 Honda Civic Type R (FK8). It supports all stock ECU variations across those model years and includes an unlock tool for later units requiring ECU access prior to tuning.
No special tools are required. Installation is plug‑and‑play via the OBD‑II port, and intuitive on‑screen prompts guide you through flashing maps and ECU updates. Unlock hardware is included for certain model years that require it to access locked Honda ECUs.
Yes — the Accessport stores a copy of your stock ECU calibration before any tuning is applied. You can revert back to a completely stock tune at any time, restoring the original performance and settings.
Tuning tools like the Accessport can be detected on the vehicle, and some dealers may use that information when assessing warranty claims. This does not automatically void your warranty, but it may influence decisions if a related issue arises. Consult your dealer for details specific to your region, vehicle age, and warranty status.
Yes — the Accessport supports custom tuning via COBB’s software or authorized COBB ProTuners. While off‑the‑shelf maps provide a solid performance baseline, custom maps tuned to your specific hardware setup will yield the best results for modified vehicles.
Fuel quality influences performance and safety. You will make the most power using the 93 map as long as you use 93 octane all the time. If you use 93 octane but occasionally fill up with 91 octane, run the 91 octane map. Using higher octane fuel where available allows for more aggressive timing and boost targets.
COBB Tuning provides a limited warranty that covers defects in materials and workmanship from the date of purchase when purchased through an authorized dealer. This limited warranty does not cover damage resulting from improper installation, misuse, or unauthorized modifications. Consult your reseller or COBB’s warranty documentation for complete terms and conditions.
SKU:COBBAP3-HON-001 ,UPC: ,Availability:
