OK ALL you experts on Ford Trucks, can anyone tell me what the H!!!! is the little green canister with bracket welded behind the exhaust pipe flange after the Cat Converter. I just can't for the life of me figure out what the item is and for what reason it is there. I saw something like this before but it has a wire coming out of the back end. Is this something that is used for another appplication and ford just have too many of them fabricated and decided to install it on the 2009 F150? Please, if you have any clue of what this contraption is, let everyone with a 2009 F150 know.
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