McLaren JB4 Performance Tuner for M838T Engines (BETA) | R 36841 – Check Prices Buy Online

McLaren JB4 Performance Tuner Summary

The McLaren JB4 Performance Tuner is a plug-and-play device that enhances horsepower and torque by remapping boost, timing, and fueling for optimal performance. It features a 64mhz processor for smooth and powerful performance, with a fully programmable CANbus system and data logging capabilities. The JB4 is customizable with different tuning maps, including stock and valet modes, and offers unique safety features. Installation is discreet with the ability to quickly remove without a trace. The tuner is compatible with various fuel mixtures and comes with a 5-year warranty. It can be wirelessly connected to Bluetooth-compatible devices for tuning changes and firmware updates. The JB4 is designed for McLaren M838T engine variants and offers improved 0-60 and 1/4 mile times. Overall, the JB4 is a top-tier plug-and-play tuning system that has set the standard for turbocharged performance tuning.