The material has to be around 2" wide on each side so it has enough room to fit over the ECU and still reach that bolt hole you can see there. I had to cut the side of the bracket that went down the side of the ecu down to about an 1" wide and of course notch the end to fit over where it mounts to the stock bracket. The bolt hole on top just goes through the new bracket but the bolt on the bottom also goes through wood cover.