Lexus GX550
History of Lexus GX550
Lexus officially unveiled the completely redesigned third-generation model, the GX 550, which launched for the 2024 model year. Built on Toyota’s modern GA-F platform, the GX 550 abandoned the naturally aspirated V8 in favor of a 3.4-liter twin-turbo V6 engine producing 349 horsepower paired with a 10-speed automatic transmission, while introducing a distinctively boxy, retro design alongside off-road-focused trims like the Overtrail.
Why Choose COBB for Your Lexus GX550 Mods
The COBB Tuning Accessport provides full ECU flashing support for the 2024+ Lexus GX550. Plugging directly into the truck’s OBD2 port, the handheld tuner unlocks hidden performance from the twin-turbo V6 powertrain by replacing conservative factory calibrations with aggressive Off-The-Shelf (OTS) performance maps. Drivers can easily switch between multiple performance calibrations, monitor real-time engine parameters on a full-color multi-gauge display, read and clear trouble codes, and seamlessly revert the vehicle back to its stock ECU configuration at any time.
Lexus GX550 Accessport
Accessport
Looking for Lexus GX550 aftermarket performance upgrades? It all starts with the Accessport! The Accessport is the world’s best selling, most flexible ECU upgrade solution for your Toyota 4Runner. Simply plug this device into your car’s OBD port and you have the capability to reflash the ECU to enjoy power gains, custom features, and other improvements immediately! All of the off the shelf maps are included at no additional cost and free updates are simplified with Accessport Manager. It’s the last engine management solution you’ll ever need! This version of the Accessport includes the capability to flash the TCM which is the unit that controls the transmission. It includes various Off The Shelf transmission tunes which adjust shift points, shift firmness, skip shift behavior, and torque limits to fit your preferred driving style.