COBB Accessport V3 Tuner for 2024-2026 GX550 Non-Hybrid - AP3-TOY-006

Tune, monitor, and manage your 2024-2026 Lexus GX550 with the COBB AP3-TOY-006 Accessport V3. Designed for supported non-hybrid GX550 applications, this programmer and tuner provides ECU and TCM flashing, preloaded Off The Shelf maps, real-time vehicle monitoring, calibration storage, datalogging support, and compatibility with Accesstuner for custom tuning when purchased separately.

The Accessport supports Stage 0 and Stage 1 87/91/93 Octane ECU maps, along with Simulated Stock, OEM+, and Sport TCM calibrations. Supported transmission maps can modify shift points, downshift scheduling, throttle response, and torque limits to provide different transmission characteristics based on the selected calibration.

COBB-supplied Stage 1 testing reports a peak horsepower increase of 8.6 percent on 91 octane and 11.2 percent on 93 octane compared with the tested stock configuration. Peak torque increases were reported at 8.1 percent on 91 octane and 8.8 percent on 93 octane. COBB also recorded significant differences at specific RPM points, along with higher average horsepower and torque across the test pull. Actual results can vary based on vehicle condition, fuel quality, environmental conditions, and testing methodology.

The Accessport V3 features a large full-color high-resolution screen capable of monitoring up to six vehicle parameters simultaneously. The multi-gauge display can be customized around preferred parameters, while internal storage supports up to 100 calibrations. Accessport Manager can be used with a compatible PC or Mac to manage maps, download recorded datalogs, and update the Accessport.

A Gateway Bypass Harness is included and is used during initial installation and certain ECU communication procedures. The harness connects to the vehicle's OBD-II port, Gateway connector, and Accessport when required. It may also be used when dumping an unsupported ROM or recovering from a failed flash, but it is not required for routine map changes or uninstalling the Accessport.

Key Features & Specs:

• Accessport V3: ECU and TCM tuning platform for supported Lexus GX550 applications
• ECU Flashing: Supports compatible COBB ECU calibrations
• TCM Flashing: Includes supported automatic transmission calibrations
• Stage 0 Map: Supported baseline ECU calibration
• Stage 1 Maps: Available for 87, 91, and 93 octane fuel
• Simulated Stock TCM Map: Stock-style Lexus GX550 transmission calibration
• OEM+ TCM Map: Sportier but refined transmission behavior
• Sport TCM Map: Performance-focused transmission behavior
• Real-Time Monitoring: Displays up to six vehicle parameters simultaneously
• Customizable Multi-Gauge Display: Configure the screen around preferred monitored parameters
• Calibration Storage: Stores up to 100 calibrations
• Gateway Bypass Harness: Included
• Accessport Manager: Manage maps, download datalogs, and update the Accessport using a compatible PC or Mac
• Accesstuner Compatible: Supports custom tuning through Accesstuner, available separately
• Interchangeable Faceplates: Allows Accessport appearance customization
• Powertrain: Non-Hybrid
• Transmission: Automatic
• Emissions: 50-State Legal when used according to COBB's application guide
• CARB EO: D-660-326
• Part Number: AP3-TOY-006

Vehicle Fitment:

• 2024-2026 Lexus GX550 Non-Hybrid

COBB Stage 1 Performance Data:

• 91 Octane Peak Torque Increase: 8.1 percent - 465.1 ft-lb at 3650 rpm vs 430.4 ft-lb at 3410 rpm
• 91 Octane Peak Horsepower Increase: 8.6 percent - 385.5 hp at 4880 rpm vs 355.0 hp at 5310 rpm
• 91 Octane Maximum Torque Difference: 57.9 percent - 232.9 ft-lb vs 147.5 ft-lb at 2080 rpm
• 91 Octane Maximum Horsepower Difference: 56.1 percent - 91.5 hp vs 58.6 hp at 2080 rpm
• 91 Octane Average Torque: 409.3 ft-lb tuned vs 360.7 ft-lb stock
• 91 Octane Average Horsepower: 310.8 hp tuned vs 274.3 hp stock
• 93 Octane Peak Torque Increase: 8.8 percent - 468.3 ft-lb at 3360 rpm vs 430.4 ft-lb at 3410 rpm
• 93 Octane Peak Horsepower Increase: 11.2 percent - 394.9 hp at 4860 rpm vs 355.0 hp at 5310 rpm
• 93 Octane Maximum Torque Difference: 68.0 percent - 247.7 ft-lb vs 147.5 ft-lb at 2080 rpm
• 93 Octane Maximum Horsepower Difference: 65.7 percent - 97.1 hp vs 58.6 hp at 2080 rpm
• 93 Octane Average Torque: 412.3 ft-lb tuned vs 360.7 ft-lb stock
• 93 Octane Average Horsepower: 313.1 hp tuned vs 274.3 hp stock

TCM Map Details:

• Simulated Stock: Stock-style Lexus GX550 transmission calibration
• OEM+: Moderately increased shift points, more responsive downshift schedules, modest increases in mid-throttle requested torque, and increased torque limits
• Sport: Increased shift points, more responsive downshift schedules, more aggressive increases in mid-throttle requested torque, and increased torque limits

Fitment & Installation Notes:

• Designed for the supported 2024-2026 Lexus GX550 non-hybrid application.
• The included Gateway Bypass Harness is used during initial Accessport installation and certain ECU communication procedures.
• The Gateway Bypass Harness may also be required when dumping an unsupported vehicle ROM or recovering from a failed flash.
• The Gateway Bypass Harness is not required for routine map changes or Accessport uninstall procedures.
• Installation over ECU or TCU software other than OEM or COBB software may result in ECU or TCU failure.
• Use the correct COBB calibration for the vehicle, fuel octane, and installed hardware.
• Performance figures listed above are COBB-supplied test results and may vary between vehicles and operating conditions.
• 50-state emissions legality applies when used according to COBB's application guide and CARB Executive Order D-660-326.

What's Included:

• COBB Accessport V3 - AP3-TOY-006
• COBB Gateway Bypass Harness

Why Choose COBB?

COBB develops vehicle-specific tuning solutions built around the Accessport platform, combining ECU and transmission calibration, real-time monitoring, datalogging, map management, and custom tuning capability in a single in-cabin device. Preloaded OTS maps provide a defined tuning path, while Accessport Manager and Accesstuner support expand map management and calibration options for supported applications.