# Piggyback ECUs

- URL: https://www.gt2i.ch/en/19416215/boitiers-additionnels

## Description

Piggyback control units optimize engine management by adjusting injection and ignition parameters. They improve power, throttle response and flexibility, making them suitable for rally, circuit and performance focused applications.

## Subcategories


## Products

- [MMR +110cv Aftermarket Control Unit - BMW M4 CS G82 550cv (2023–2024)](https://www.gt2i.ch/en/boitiers-additionnels/217197-mmr-110cv-aftermarket-control-unit-bmw-m4-cs-g82-550cv-20232024-3666618839721.html): CHF 1,059.00
- [MMR Power control module - BMW M3 CS F80 - M4 CS F82](https://www.gt2i.ch/en/boitiers-additionnels/217199-mmr-power-control-module-bmw-m3-cs-f80-m4-cs-f82-3666618839745.html): CHF 917.00
- [MMX Power control module BMW F82 & F83 M4 S55](https://www.gt2i.ch/en/boitiers-additionnels/217200-mmx-power-control-module-bmw-f82-f83-m4-s55-3666618839752.html): CHF 917.00
- [MMX Power control module BMW F82 & F83 M4 S55](https://www.gt2i.ch/en/boitiers-additionnels/217201-mmx-power-control-module-bmw-f82-f83-m4-s55-3666618839769.html): CHF 917.00
- [MMX Power Control Module | BMW F87 | M2 Comp | 411HP](https://www.gt2i.ch/en/boitiers-additionnels/217202-mmx-power-control-module-bmw-f87-m2-comp-411hp-3666618839776.html): CHF 917.00
- [MMX Power Control Module | BMW F87 | M2 Comp | 411HP](https://www.gt2i.ch/en/boitiers-additionnels/217203-mmx-power-control-module-bmw-f87-m2-comp-411hp-3666618839783.html): CHF 917.00
- [MMR +100cv Aftermarket Control Unit - BMW M4 Competition G82 510cv](https://www.gt2i.ch/en/boitiers-additionnels/217204-mmr-100cv-aftermarket-control-unit-bmw-m4-competition-g82-510cv-3666618839790.html): CHF 1,059.00
- [MMR +70cv additional box - BMW M2 CS G87 530cv (2025–2026)](https://www.gt2i.ch/en/boitiers-additionnels/217192-mmr-70cv-additional-box-bmw-m2-cs-g87-530cv-20252026-3666618839677.html): CHF 1,059.00
- [Additional box MMR +100cv - BMW M4 G82 xDrive 530cv (2024–2026)](https://www.gt2i.ch/en/boitiers-additionnels/217193-additional-box-mmr-100cv-bmw-m4-g82-xdrive-530cv-20242026-3666618839684.html): CHF 1,059.00
- [MMR +100cv Aftermarket Control Unit - BMW M4 G82 480cv (2023–2025)](https://www.gt2i.ch/en/boitiers-additionnels/217194-mmr-100cv-aftermarket-control-unit-bmw-m4-g82-480cv-20232025-3666618839691.html): CHF 1,059.00
- [MMX Power Control Module | BMW G87 | M2 | 460HP | 480HP](https://www.gt2i.ch/en/boitiers-additionnels/217205-mmx-power-control-module-bmw-g87-m2-460hp-480hp-3666618839806.html): CHF 1,059.00