Burger Motorsports JB4 Plug and Play Piggyback ECU Tuning Box for Lotus Emira 2022 onwards 2.0 Turbo M139 & 3.5 V6 Supercharged 2GR-FE with Bluetooth App

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Burger Motorsports JB4 Plug and Play Piggyback ECU Tuning Box for Lotus Emira 2022 onwards 2.0 Turbo M139 & 3.5 V6 Supercharged 2GR-FE with Bluetooth App

Regular price: £1,012.70
Sale price: £1,012.70
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Heads-up on cancellations & returns: if you cancel an order or return an item, you won't get back 100% of what you paid. We apply a 10% restocking fee, the outbound shipping is non-refundable, and we have to pass on Shopify / PayPal payment processing fees; these aren't returned to us when we refund you. International orders also lose on exchange-rate spread in both directions. If the original packaging is damaged or missing, a reboxing charge applies. For international orders specifically, if you refuse to pay our shipping invoice or supply a prepaid label after placing the order, the same deductions apply. We're upfront about this — please be sure of your purchase before ordering.

Unlock serious performance from your 2022+ Lotus Emira with the JB4 plug and play tuning box, supplied by Nforcd. This advanced piggyback ECU module works alongside the factory ECU to optimise boost, timing and fuelling for sharper response and stronger power without the need to flash the ECU. Suitable for both the 2.0L turbocharged M139 and 3.5L supercharged 2GR-FE engines, the JB4 delivers gains of up to 100whp on a stock car depending on fuel, with quicker 0-60 and quarter-mile potential and no ECU unlock required.

Plug and play JB4 tuner for Lotus Emira 2022 onwards 2.0L Turbo M139 and 3.5L V6 Supercharged 2GR-FE
Power gains up to 100whp depending on fuel used, while retaining factory safety systems
No ECU flash required and compatible with locked ECUs
Includes JB4PRO Bluetooth adapter and free app for wireless map switching, data logging and firmware updates
Preloaded Emira-specific maps for 91 and 93 octane, race fuel and ethanol blends
Boost by gear control in 1st, 2nd and 3rd via the JB4PRO app for improved traction and launches
CANbus OBDII integration for enhanced tuning control and smooth, OEM-like drivability
Read and clear fault codes and view up to 40 live parameters when used with the optional OBDII cable
Compatible with all factory driving modes and maintains fuel economy during normal driving
Not VIN locked, easily removable without a trace and can be resold
Rugged billet aluminium enclosure, designed and assembled in the USA
5-year warranty

What is the JB4? It is a sophisticated piggyback tuning solution that intercepts key sensor and CANbus data to adjust boost, timing, AFR and fuel trims in real time, much like an ECU remap, yet without flagging or unlocking the ECU. The result is smooth, reliable gains and a highly configurable setup through the JB4PRO app. For best results use 91 octane or higher fuel.

Vehicle fitment
Lotus Emira 2022+ 2.0L I4 Turbo M139
Lotus Emira 2022+ 3.5L V6 Supercharged 2GR-FE

Buy with confidence from Nforcd. We know JB4 products well and they have proven popular with our customers seeking a flexible, removable upgrade for the Emira. Need installation? Professional fitting is available at Nforcd in Warwickshire. Request a quote via Sales@nforcd.com.