Unlock serious performance from your 2018-on Lexus LS 500 3.5L twin turbo with the JB4 plug-and-play tuning box from Nforcd. This advanced piggyback ECU delivers impressive gains without flashing the ECU, transforming acceleration and mid-range pull while keeping factory safety systems and driveability intact.
- Proven power increases of up to 60hp at the wheels on a stock car on pump petrol, around 75hp at the crank, with even higher gains on higher octane, E85 blends and supporting bolt-ons.
- Simple plug and play installation, no ECU unlock required, retains all OEM safety features and driving modes.
- In-dash map switching with up to 8 preloaded maps, including ethanol compatible options, so you can tailor performance to your fuel and mods.
- Built-in data logging and fault code read and delete, plus boost by gear control to help manage traction in lower gears.
- Optional Bluetooth adapter with the JB4PRO app for iOS and Android to view and record up to 20 parameters, change maps and update firmware from your phone.
- Advanced CANbus OBDII integration for smooth, OEM-like delivery. Not VIN locked, easily removed without a trace. Rugged billet aluminium enclosure, made in the USA and backed by a 5 year warranty.
Fuel requirement: 91 octane or higher recommended for performance gains.
Vehicle fitment: 2018+ Lexus LS 500 3.5L V6 twin turbo.
Nforcd knows the JB4 well and it remains a popular Lexus LS 500 upgrade for customers seeking a powerful yet reversible tuning solution. Order online today, or if you would like this item professionally installed, fitting is available at Nforcd in Warwickshire. Request a quote via Sales@nforcd.com.