Stand Alone Aftermarket Engine Management for BMW 5 Series E34 (1987-1995)

For full race or track-only cars, an aftermarket engine management system provides enormous benefits over a stock ECU system. Modern ECU systems are not designed for racing and track use. The engineers have different goals in designing these systems compared to what a motorsports engineer would specify. Racers don't have to be concerned with emissions compliance or OBD diagnostic regulations. All a racer wants is lots of reliable power. And that's where aftermarket engine management - stand alone ECUs - come into play.

We offer stand-alone engine management systems and components from Bosch Motorsport and MoTeC and others. Turner Motorsport has been racing with stand-alone systems for over ten years and have extensive real world experience with building complete systems, existing integration, and providing individual components for upgrades. We have also partnered with Bosch to develop a plug-and-play Motorsport ECU that is integrated with factory wiring harnesses.