Cover up your factory ECU in the engine bay with this FFG designed box. Mounting your engine’s computer can be both difficult and frustrating. When you are finally done, you are left with the ECU sticking out like a sore thumb. Let’s change that. Use our Fat Fender Garage ECU Box to cover up the ugly computer and make mounting it a breeze. These are precision laser cut from aluminum and are complete with a black, powder coated finish.