JB4 Plug & Play Tuning Box Piggyback ECU for Porsche Macan (2019+) S/GTS/Turbo, Cayenne E3 9Y0 (2018+) Base/S, Panamera (2018+) Base/S 2.9TT/3.0T
JB4 Plug & Play Tuning Box Piggyback ECU for Porsche Macan (2019+) S/GTS/Turbo, Cayenne E3 9Y0 (2018+) Base/S, Panamera (2018+) Base/S 2.9TT/3.0T
JB4 Plug & Play Tuning Box Piggyback ECU for Porsche Macan (2019+) S/GTS/Turbo, Cayenne E3 9Y0 (2018+) Base/S, Panamera (2018+) Base/S 2.9TT/3.0T
JB4 Plug & Play Tuning Box Piggyback ECU for Porsche Macan (2019+) S/GTS/Turbo, Cayenne E3 9Y0 (2018+) Base/S, Panamera (2018+) Base/S 2.9TT/3.0T
JB4 Plug & Play Tuning Box Piggyback ECU for Porsche Macan (2019+) S/GTS/Turbo, Cayenne E3 9Y0 (2018+) Base/S, Panamera (2018+) Base/S 2.9TT/3.0T
JB4 Plug & Play Tuning Box Piggyback ECU for Porsche Macan (2019+) S/GTS/Turbo, Cayenne E3 9Y0 (2018+) Base/S, Panamera (2018+) Base/S 2.9TT/3.0T
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  • Load image into Gallery viewer, JB4 Plug & Play Tuning Box Piggyback ECU for Porsche Macan (2019+) S/GTS/Turbo, Cayenne E3 9Y0 (2018+) Base/S, Panamera (2018+) Base/S 2.9TT/3.0T
  • Load image into Gallery viewer, JB4 Plug & Play Tuning Box Piggyback ECU for Porsche Macan (2019+) S/GTS/Turbo, Cayenne E3 9Y0 (2018+) Base/S, Panamera (2018+) Base/S 2.9TT/3.0T
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  • Load image into Gallery viewer, JB4 Plug & Play Tuning Box Piggyback ECU for Porsche Macan (2019+) S/GTS/Turbo, Cayenne E3 9Y0 (2018+) Base/S, Panamera (2018+) Base/S 2.9TT/3.0T

JB4 Plug & Play Tuning Box Piggyback ECU for Porsche Macan (2019+) S/GTS/Turbo, Cayenne E3 9Y0 (2018+) Base/S, Panamera (2018+) Base/S 2.9TT/3.0T

£778.70
£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 responsive, repeatable performance from your Porsche with the JB4 plug and play tuning box. Designed to work alongside the factory ECU, JB4 intelligently optimises boost, ignition timing and fuelling to sharpen throttle response, cut turbo lag and deliver strong real-world gains without an ECU remap. It is fully CANbus integrated, SENT sensor compatible and works with all driving modes while retaining factory safety systems. No ECU flash needed and compatible with locked ECUs. Available from Nforcd in the UK.

  • Easy plug and play install with discreet removal, not VIN locked
  • Full CANbus integration for advanced safety strategies including reduced boost until oil and coolant are up to temperature and automatic switch to a low boost map if overheating, running lean, excessive knock or overboost is detected
  • SENT sensor technology support for correct operation on the latest platforms
  • Preloaded JB4 software with up to 8 maps for different fuel and modification levels
  • Ethanol compatible mapping with fuel control for ethanol mixture tuning
  • Boost by gear control for improved launches
  • Read and clear fault codes through the JB4 system
  • View and record up to 40 live engine parameters via the JB4 app
  • Optional JB4 PRO Bluetooth connection for smartphone logging, on the fly map changes and firmware updates
  • Revision 2 includes an integrated boost control connection for higher power set ups, no separate BCM required
  • Billet aluminium enclosure for durability
  • Runs as smoothly as stock and fuel economy remains unchanged during normal driving
  • Made in the USA with a 5 year warranty
  • Improves 0 to 60 mph and quarter mile times

Vehicle fitment

  • 2019+ Porsche Macan S Facelift 3.0T
  • 2019+ Porsche Macan GTS Facelift 2.9TT
  • 2019+ Porsche Macan Turbo Facelift 2.9TT
  • 2018+ Porsche E3 9Y0 Cayenne Base 3.0T
  • 2018 to 2023 Porsche E3 9Y0 Cayenne S 2.9TT
  • 2018+ Porsche Panamera Base 3.0T
  • 2018+ Porsche Panamera S 2.9TT

Whether you call it a tuning box, piggyback ECU or plug in remap alternative, the JB4 remains the benchmark for Porsche turbo models thanks to its data driven control, safety features and easy reversibility. Nforcd knows this product well and it has been a popular upgrade with our customers looking for a fast, clean and configurable performance solution.

Order your JB4 from Nforcd today. Professional fitting is available at Nforcd in Warwickshire. To request a fitting quote, contact Sales@nforcd.com.