BMS JB4, engine tuning device Lotus Emira 2022+ (2.0 / 3.5L)

Burger Motorsports JB4 Tuner – Lotus Emira 2.0 I4 / 3.5L V6 (includes Bluetooth kit)

The JB4 is a plug-and-play piggyback ECU controller that allows advanced, intelligent tuning without modifying the factory ECU software. Installed between the engine sensors and the ECU, it adjusts the ECU signals in real time, delivering the benefits of tuning without flashing the car.

This JB4 supports both Lotus Emira engine versions: 2.0L AMG i4 (DCT) and 3.5L V6 Supercharged (IPS / manual). Select the correct version from the product options.

A wide selection of preset maps is included for various fuels and performance levels. Through the Bluetooth app you can datalog, switch maps on the fly, monitor additional gauges, and create custom tuning profiles. The JB4 is also fully removable without leaving any trace.

Plug & Play – ready to use with no permanent modifications.

Manufacturer-rated gains can be significant depending on fuel quality and engine configuration. JB4 also supports FlexFuel / E-blend ratios and WMI systems when equipped with optional accessories.

Bonus: This kit includes the normally optional Bluetooth module!

Features

• Piggyback ECU – no changes to the factory ECU software
• Multiple preset maps for different fuels and tuning stages
• Bluetooth control via mobile app
• Datalogging and full custom map support
• FlexFuel / E85 capable with add-ons
• Fully removable without trace
• Motorsport part – not TÜV approved

Learn more about this product on the Burger Motorsports website .

Download installation instructions: installation guide

Vehicle Compatibility

Lotus Emira – 3.5L V6 Supercharged
2022– → IPS / Manual

Lotus Emira – 2.0L AMG i4 Turbo
2023– → DCT

Two separate JB4 versions are available (i4 & V6). Select the correct option from the dropdown menu.