JB4 Tuning System

The Burger Motorsports JB4 is an advanced tuning system specifically engineered for the 2018 and newer Lexus LS 500 models equipped with the 3.5L Twin Turbo V6 engine. This system provides significant power gains, estimated at up to 75hp at the crank and 60hp at the wheels on a stock vehicle, by manipulating engine performance through sensor connections without altering the factory ECU. The JB4 system includes a billet aluminum enclosure and is designed and assembled in the USA, backed by a 5-year warranty. It offers a range of features, including multiple tuning maps for various fuel types, boost limiting by gear for improved traction, fault code reading and deletion, and the ability to display and log up to 40 engine parameters. It also supports E85 ethanol blends and controls exhaust flap operation on compatible vehicles. This specific package includes the JB4PRO Bluetooth adapter, allowing for wireless connectivity to your iOS or Android device via the free JB4PRO mobile app. This app enables real-time vehicle and tuning data analysis, performance map changes, and firmware updates. The adapter fits neatly inside the JB4 enclosure for enhanced weather protection and a streamlined appearance. The JB4 is compatible with all driving modes and has no impact on fuel economy during normal driving, though it requires 91 octane or better for optimal performance gains.