JB4 Plug & Play Piggyback ECU Tuning Box for Mazda CX-90/CX-60 (2024+) & CX-70 (2025+) 3.3L Turbo SKYACTIV incl Turbo S
JB4 Plug & Play Piggyback ECU Tuning Box for Mazda CX-90/CX-60 (2024+) & CX-70 (2025+) 3.3L Turbo SKYACTIV incl Turbo S
JB4 Plug & Play Piggyback ECU Tuning Box for Mazda CX-90/CX-60 (2024+) & CX-70 (2025+) 3.3L Turbo SKYACTIV incl Turbo S
JB4 Plug & Play Piggyback ECU Tuning Box for Mazda CX-90/CX-60 (2024+) & CX-70 (2025+) 3.3L Turbo SKYACTIV incl Turbo S
JB4 Plug & Play Piggyback ECU Tuning Box for Mazda CX-90/CX-60 (2024+) & CX-70 (2025+) 3.3L Turbo SKYACTIV incl Turbo S
  • Load image into Gallery viewer, JB4 Plug & Play Piggyback ECU Tuning Box for Mazda CX-90/CX-60 (2024+) & CX-70 (2025+) 3.3L Turbo SKYACTIV incl Turbo S
  • Load image into Gallery viewer, JB4 Plug & Play Piggyback ECU Tuning Box for Mazda CX-90/CX-60 (2024+) & CX-70 (2025+) 3.3L Turbo SKYACTIV incl Turbo S
  • Load image into Gallery viewer, JB4 Plug & Play Piggyback ECU Tuning Box for Mazda CX-90/CX-60 (2024+) & CX-70 (2025+) 3.3L Turbo SKYACTIV incl Turbo S
  • Load image into Gallery viewer, JB4 Plug & Play Piggyback ECU Tuning Box for Mazda CX-90/CX-60 (2024+) & CX-70 (2025+) 3.3L Turbo SKYACTIV incl Turbo S
  • Load image into Gallery viewer, JB4 Plug & Play Piggyback ECU Tuning Box for Mazda CX-90/CX-60 (2024+) & CX-70 (2025+) 3.3L Turbo SKYACTIV incl Turbo S

JB4 Plug & Play Piggyback ECU Tuning Box for Mazda CX-90/CX-60 (2024+) & CX-70 (2025+) 3.3L Turbo SKYACTIV incl Turbo S

£687.70
£687.70
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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, reliable power from your Mazda with the JB4 plug and play tuner for 2024+ CX-90, 2024+ CX-60 and 2025+ CX-70 3.3L Turbo SKYACTIV models. This advanced piggyback tuning box integrates with your factory ECU to adjust boost, timing and fuelling for sharper response, reduced turbo lag and proven gains of up to 70whp and 60wtq on a stock vehicle. No ECU flash required and fully removable without a trace. Nforcd supplies this best-in-class upgrade to transform your daily drive while retaining OEM smoothness and safety systems.

  • Vehicle fitment: 2024+ Mazda CX-90 3.3L Turbo SKYACTIV, 2024+ Mazda CX-60 3.3L Turbo SKYACTIV, 2025+ Mazda CX-70 3.3L Turbo SKYACTIV including Turbo S
  • Power increases of up to 70whp and 60wtq on a factory car
  • Preloaded Mazda-specific JB4 software with up to 8 selectable maps for different fuels and modifications
  • Ethanol E85 compatible tuning maps
  • Optional OBDII CANbus integration to read real-time ECU data such as pedal and throttle position, timing advance, trims, AFR and knock for intelligent, adaptive tuning
  • Boost by gear, smoother part-throttle behaviour and additional safety strategies including lean run and overboost protection
  • Optional JB4 PRO Bluetooth module and free app for wireless map switching, live gauges, advanced data logging, fault code read and delete, and free firmware updates
  • Quick plug and play install to two easily accessed sensors, discreet fit and not VIN locked so it can be removed and resold later
  • Runs as smoothly as stock and compatible with all driving modes, with fuel economy unchanged during normal driving
  • 64 MHz processor samples sensors 800 times per second via dedicated 10 bit converters for ultra-precise control
  • Rugged billet aluminium enclosure, designed and assembled in the USA, 5 year warranty
  • 91 octane fuel or better required for performance gains

Nforcd knows the JB4 well and it has been a popular upgrade for Mazda 3.3L Turbo owners who want a fast, flexible and reversible tuning solution. Order yours today for fast UK delivery. Prefer a professional installation. Fitting is available at Nforcd in Warwickshire. Request a quote via Sales@nforcd.com.