After removing the original Weber ECM I needed to see what the new ECM mounting requirements were. I knew that the front ears where in the correct position but the original Weber ECM I had a mounting bracket in the rear to stabilize it. This new guy is busy back there and I really didn't want to drill into it with the PCB board installed. This Bosch case has wider mounting ears so it looks like that addition of a couple more bolts will firmly secure it. While back there also popped another hole in the rear floor for the extra wires needed.