ECU lid Impreza/WRX/STI

thingiverse

It fits snugly around the plugs on the engine control unit box. To get a replacement for the factory lid, buyers typically must purchase another entire box, which often means acquiring a new computer as well. This file serves as a backup in case you accidentally lose or damage yours while working with the circuit board, or if you unknowingly buy an ECU that's missing its lid in a shipment of parts.