BMW E30 M3 S14 Plug and Play kit - MaxxECU

MaxxECU engine control package with our own patch harness for BMW E30 M3
MaxxECU engine control package is an advanced replacement for the original ECU in BMW E30 M3. With a smooth plug-and-play installation and full integration with the car's existing system, it provides superior engine control and performance optimization without the need for electrical system modifications. A well-matched MaxxECU will give your S14 a whole new lease of life, with drivability and throttle response you never thought possible, we guarantee you'll regret not replacing the old motronic system sooner. Advanced features and support:
MaxxECU supports the S14 engine (2.3L and 2.5L) and offers:
- Sequential injection for optimal fuel efficiency, throttle response and performance.
- Wide band lambda for precise fuel trimming.
- Electronic Throttle (E-Throttle) compatibility when upgraded (Sport and Race only).
- Launch Control and Traction Control support for maximum acceleration and traction.
Installation and compatibility:
No cable cutting or electrical system modification required. Installation takes about 30min and the car can be easily restored to original configuration. An intake temperature sensor must be installed and a lambda nut may need to be welded into the exhaust system for optimal wideband lambda measurement.
Contents of the kit:
- MaxxECU control unit (Street, Sport or Race or without control box depending on choice).
- Adapter harness for BMW E30 M3.
- Deutch DTM 1/8NPT intake temperature sensor.
- Ignition amplifier (when choosing original ignition coil).
- Manual and installation instructions in Swedish and English.
Base folder and mapping:
A customized base map is included, optimized for original spreaders and about 200 hp. We strongly recommend that it is reviewed and adjusted by a professional tuner for optimal performance, function and safety. Contact us for more information and help with mapping.
Swedish made and proven:
MaxxECU is built on market-leading technology and uses the same powerful software for total engine control. Everything you need to install, start and map is included - ready for race or street use right away!