This is a known issue with theMSD80 / MSD81 ECUs, where the original transistors can no longer handle the demands of the engine. We remove all 6 factory transistors from the ECU board. Watch our YouTube video showing exactly how this repair is carried out.
This product would be ideal for BMW 3 Series drivers seeking ECU transistor upgrades or repairs to resolve "30BA 30BB fault code" issues in their BMW 325i or 330i.
