JB4 Plug-and-Play Piggyback Tuning Box for Ford Explorer EcoBoost 2016+, incl 2.3 I4, 3.0 V6 ST & 3.5 V6, ECU Remap Alternative
JB4 Plug-and-Play Piggyback Tuning Box for Ford Explorer EcoBoost 2016+, incl 2.3 I4, 3.0 V6 ST & 3.5 V6, ECU Remap Alternative
JB4 Plug-and-Play Piggyback Tuning Box for Ford Explorer EcoBoost 2016+, incl 2.3 I4, 3.0 V6 ST & 3.5 V6, ECU Remap Alternative
JB4 Plug-and-Play Piggyback Tuning Box for Ford Explorer EcoBoost 2016+, incl 2.3 I4, 3.0 V6 ST & 3.5 V6, ECU Remap Alternative
JB4 Plug-and-Play Piggyback Tuning Box for Ford Explorer EcoBoost 2016+, incl 2.3 I4, 3.0 V6 ST & 3.5 V6, ECU Remap Alternative
  • Load image into Gallery viewer, JB4 Plug-and-Play Piggyback Tuning Box for Ford Explorer EcoBoost 2016+, incl 2.3 I4, 3.0 V6 ST & 3.5 V6, ECU Remap Alternative
  • Load image into Gallery viewer, JB4 Plug-and-Play Piggyback Tuning Box for Ford Explorer EcoBoost 2016+, incl 2.3 I4, 3.0 V6 ST & 3.5 V6, ECU Remap Alternative
  • Load image into Gallery viewer, JB4 Plug-and-Play Piggyback Tuning Box for Ford Explorer EcoBoost 2016+, incl 2.3 I4, 3.0 V6 ST & 3.5 V6, ECU Remap Alternative
  • Load image into Gallery viewer, JB4 Plug-and-Play Piggyback Tuning Box for Ford Explorer EcoBoost 2016+, incl 2.3 I4, 3.0 V6 ST & 3.5 V6, ECU Remap Alternative
  • Load image into Gallery viewer, JB4 Plug-and-Play Piggyback Tuning Box for Ford Explorer EcoBoost 2016+, incl 2.3 I4, 3.0 V6 ST & 3.5 V6, ECU Remap Alternative

JB4 Plug-and-Play Piggyback Tuning Box for Ford Explorer EcoBoost 2016+, incl 2.3 I4, 3.0 V6 ST & 3.5 V6, ECU Remap Alternative

Regular price
£687.70
Sale price
£687.70
Regular price
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Unit price
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Tax included. Shipping calculated at checkout.

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 Ford Explorer with the JB4 plug and play tuning box. This advanced piggyback tuner works seamlessly with the factory ECU to optimise boost, timing and fuelling for faster acceleration and reduced turbo lag, without the need to flash the ECU. Expect gains of up to 100hp and 120wtq at the wheels on a stock vehicle. Nforcd supplies this proven upgrade in the UK and knows the JB4 well.

  • Plug and play installation using two easily accessed engine sensors for a clean, reversible upgrade
  • No ECU flash required and compatible with locked ECUs
  • Full CANbus OBDII integration for real-time tuning using pedal position, throttle, timing, AFR, knock, fuel trims, gear data and more
  • Preloaded maps for 91 and 93 octane, factory map, Valet mode, E85 blends and unleaded race fuel
  • Boost by gear control to help dial in launches
  • Read and delete fault codes, plus log and view up to 40 parameters with the JB4 app
  • Smooth factory-like drivability with fuel economy unchanged during normal driving
  • Compatible with all driving modes including towing
  • Not VIN locked so it can be removed without a trace and resold
  • Rugged billet aluminium JB4 enclosure, designed and assembled in the USA
  • 5 year manufacturer warranty
  • Optional JB4 PRO Bluetooth module allows wireless connection to iOS and Android for map changes, logging and free firmware updates. The adapter fits inside the JB4 enclosure for improved weather protection. Free JB4PRO app available
  • 91 octane fuel or better required for performance gains

Vehicle fitment:

  • 2020+ Ford Explorer 3.0L Twin Turbo V6 EcoBoost including ST
  • 2016-2019 Ford Explorer 3.5L Twin Turbo V6 EcoBoost
  • 2016+ Ford Explorer 2.3L Turbo I4 EcoBoost

Harness selection:

  • V1 Harness: two V1 sensors
  • V1.5 Harness: one V1 sensor and one V2 sensor
  • V2 Harness: two V2 sensors
  • V3 Harness: one V3 sensor and one V2 sensor

Please check your Explorer’s charge pipe and intake manifold MAP sensors to confirm the correct harness before ordering. If you need help identifying sensors or choosing the right kit, contact Sales@nforcd.com.

The JB4 is a sophisticated tuning module for turbocharged vehicles that installs between engine sensors and the ECU, enabling precise control of boost, fuel and spark while leveraging CANbus data for safety and performance. It is frequently updated with new maps and firmware and remains a popular choice with Nforcd customers thanks to its power, features and easy reversibility.

Ready to transform your Ford Explorer with a proven remap alternative? Order your JB4 from Nforcd today. Professional fitting is available at Nforcd in Warwickshire. To request a fitting quote or technical assistance, email Sales@nforcd.com.