The Wait is over!
 
Pair with a custom tune from CAMTuning for even more gains!

Emissions
50 State Legal.
This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO) number:
D-660-174
 
The Wait Is Over.
Toyota Finally Gets the Accessport — and It Changes Everything.
 
Pair it with a custom calibration from CAMTuning for even more gains and drivability improvements.
 
The Cobb Accessport V3 is the most proven, flexible, and user-friendly ECU upgrade solution for modern Toyota platforms. It unlocks power that’s already in your vehicle by replacing conservative factory settings with smarter, more performance-oriented calibrations. Follow Cobb’s staged OTS path or step up to a true custom tune tailored to your build, fuel, and driving style.
This is the last engine management solution you’ll ever need.
Why It Matters
The Accessport installs in-cabin and becomes your new command center:
Monitor up to six live parameters on a high-resolution display
Flash ECU & TCM calibrations in minutes
Load up to 100 maps (OTS + customs)
Customize gauge layouts for street, track, towing, or dyno
Optional custom bezel colors and thousands of mounting solutions
If you’ve ever wished you could see what the ECU is doing — or change how it behaves — this is the tool.
Toyota-Specific Advantage
This version of the Accessport also flashes the TCM (transmission computer).
That means:
Smarter shift points
Firmer or smoother shift feel (your choice)
Skip-shift logic adjustments
Higher torque limits where appropriate
Better gear selection for power and towing
Bottom line: Toyota’s automatic transmission finally behaves like you want it to.
Gateway Bypass Harness Included
Some Toyota models require a Gateway Bypass Harness for initial communication and ROM reading. It’s in the box. Just connect:
OBD-II → Harness
Harness → Gateway Connector
Harness → Accessport
After setup, you won’t need it for regular map changes or uninstalling.
(Installation documentation linked on the page.)
⚠️ Warning: Do not install the Accessport over anything other than OEM or Cobb software. If you’re unsure, ask before flashing — we’re happy to help.
ECU MAP OPTIONS
Stage 0 — Stock calibration, monitoring only
Stage 1 (87/91/93) — Optimized for pump gas, bolt-on friendly
Performance Tow — Power under control, thermal strategy preserved
Custom CAMTuning calibrations available for modified vehicles or specific goals.
TCM MAP OPTIONS
You can flash three different transmission personalities:
Simulated Stock
OEM Tacoma/4Runner shift behavior — familiar baseline.
OEM+
Sporty, refined, daily-friendly improvement.
Moderately higher shift points
More responsive downshifts
Modest throttle response increase
Higher torque limits
Sport
Performance-first for drivers who want every bit of response.
Increased shift points
Faster downshifts
Noticeably sharper mid-throttle response
Aggressive torque limit strategy
In Summary
✔️ Best-in-class ECU/TCM control for Toyota
✔️ User-friendly and proven reliable
✔️ Gateway harness included
✔️ Works with OTS or full CAMTuning custom calibrations
✔️ Immediate gains + long-term upgrade path
This is the platform Toyota tuning has been waiting for.