MMX ECU Piggyback Power Module Plug & Play Tuning Box for BMW M4 F82 F83 S55 3.0 Twin-Turbo Coupe and Convertible Remap Alternative
MMX ECU Piggyback Power Module Plug & Play Tuning Box for BMW M4 F82 F83 S55 3.0 Twin-Turbo Coupe and Convertible Remap Alternative
MMX ECU Piggyback Power Module Plug & Play Tuning Box for BMW M4 F82 F83 S55 3.0 Twin-Turbo Coupe and Convertible Remap Alternative
MMX ECU Piggyback Power Module Plug & Play Tuning Box for BMW M4 F82 F83 S55 3.0 Twin-Turbo Coupe and Convertible Remap Alternative
MMX ECU Piggyback Power Module Plug & Play Tuning Box for BMW M4 F82 F83 S55 3.0 Twin-Turbo Coupe and Convertible Remap Alternative
MMX ECU Piggyback Power Module Plug & Play Tuning Box for BMW M4 F82 F83 S55 3.0 Twin-Turbo Coupe and Convertible Remap Alternative
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  • Load image into Gallery viewer, MMX ECU Piggyback Power Module Plug & Play Tuning Box for BMW M4 F82 F83 S55 3.0 Twin-Turbo Coupe and Convertible Remap Alternative
  • Load image into Gallery viewer, MMX ECU Piggyback Power Module Plug & Play Tuning Box for BMW M4 F82 F83 S55 3.0 Twin-Turbo Coupe and Convertible Remap Alternative
  • Load image into Gallery viewer, MMX ECU Piggyback Power Module Plug & Play Tuning Box for BMW M4 F82 F83 S55 3.0 Twin-Turbo Coupe and Convertible Remap Alternative
  • Load image into Gallery viewer, MMX ECU Piggyback Power Module Plug & Play Tuning Box for BMW M4 F82 F83 S55 3.0 Twin-Turbo Coupe and Convertible Remap Alternative

MMX ECU Piggyback Power Module Plug & Play Tuning Box for BMW M4 F82 F83 S55 3.0 Twin-Turbo Coupe and Convertible Remap Alternative

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£649.99
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£649.99
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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 real-world performance from your BMW M4 with the MMX plug-in engine tuning box. Designed for the S55 3.0 twin turbo in the F82 coupe and F83 convertible, this ECU piggyback module delivers a strong boost in power and torque, crisper throttle response and harder acceleration, all without opening or flashing the factory ECU. A superb remap alternative for drivers who want upgrade-level gains with full reversibility.

  • MMX ECU piggyback tuning box for the S55 twin turbo straight-six
  • Noticeable increase in power and torque with a stronger mid-range
  • Sharper throttle feel for a more responsive drive
  • No ECU flash required - leaves the factory control unit untouched
  • Retains stock safety strategies and is fully reversible
  • Direct-fit loom for quick installation and easy removal
  • Works brilliantly on otherwise standard cars and with common supporting hardware

Fitment
For BMW M4 models with the S55 engine:
- F82 M4 coupe
- F83 M4 convertible

Installation and support
Nforcd knows this product well and it has been a popular choice with our BMW M4 customers. Professional fitting is available through Nforcd in Warwickshire. Request a quote at Sales@nforcd.com. Mail-order is available for confident home installers.

If you want a powerful, plug-in and reversible engine management upgrade for your F8x M4 that avoids ECU flashing, the MMX tuning module is the smart solution. Order from Nforcd today and enjoy a sharper, more urgent M4 on every drive.

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