JB4 Plug & Play Piggyback ECU Tuner Box for Jeep Wagoneer & Grand Wagoneer 3.0L I6 Hurricane Twin Turbo (2022+) JB4PRO Bluetooth
JB4 Plug & Play Piggyback ECU Tuner Box for Jeep Wagoneer & Grand Wagoneer 3.0L I6 Hurricane Twin Turbo (2022+) JB4PRO Bluetooth
JB4 Plug & Play Piggyback ECU Tuner Box for Jeep Wagoneer & Grand Wagoneer 3.0L I6 Hurricane Twin Turbo (2022+) JB4PRO Bluetooth
JB4 Plug & Play Piggyback ECU Tuner Box for Jeep Wagoneer & Grand Wagoneer 3.0L I6 Hurricane Twin Turbo (2022+) JB4PRO Bluetooth
JB4 Plug & Play Piggyback ECU Tuner Box for Jeep Wagoneer & Grand Wagoneer 3.0L I6 Hurricane Twin Turbo (2022+) JB4PRO Bluetooth
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JB4 Plug & Play Piggyback ECU Tuner Box for Jeep Wagoneer & Grand Wagoneer 3.0L I6 Hurricane Twin Turbo (2022+) JB4PRO Bluetooth

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£778.70
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£778.70
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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+ Jeep Wagoneer or Grand Wagoneer 3.0L I6 Hurricane Twin Turbo with the JB4 plug and play tuner, available from Nforcd. Proven gains of up to 104 hp at the wheels on a completely stock vehicle running pump fuel, with the potential for even more when paired with bolt-on upgrades, higher octane or larger turbos. The latest JB4 package now includes the JB4PRO Bluetooth adapter and the free JB4PRO app for seamless smartphone control and logging.

  • Up to 104 whp gains on a stock Jeep Wagoneer or Grand Wagoneer on pump fuel
  • JB4PRO Bluetooth adapter and free JB4PRO app included for map changes, data logging, firmware updates and advanced analysis on iOS or Android
  • Simple plug and play harness for quick installation and removal, not VIN-locked and can be reverted to stock without a trace
  • Advanced CANbus OBDII integration with on-the-fly map switching, boost by gear, built-in fault code reading, E85-compatible maps and progressive water/methanol support
  • Smooth, factory-like drivability across all driving modes with fuel economy unchanged during normal driving; can improve 0 to 60 and quarter-mile times
  • Rugged billet aluminium enclosure, designed and assembled in the USA, with a 5 year warranty

Preloaded with custom JB4 software and up to 8 maps tailored for different fuels and modification levels, the JB4 actively adjusts boost, timing, AFR and fuel trims using real-time sensor and CANbus data for safe, significant power gains while retaining factory safety systems. View and record up to 40 engine parameters in real time through the JB4PRO app.

Vehicle fitment: 2022+ Jeep Wagoneer 3.0L I6 Hurricane Twin Turbo and 2022+ Jeep Grand Wagoneer 3.0L I6 Hurricane Twin Turbo.

Notes: 91 octane fuel or better is required for performance gains.

Order your JB4 from Nforcd today and transform the way your Wagoneer drives. Professional fitting is available through Nforcd in Warwickshire. To request a fitting quote, please email Sales@nforcd.com.