TRD will support these, as they are under warranty. As for the ones on ebay, I contacted them, and they seem cofused about the ecu, as they believe that one ecu will fit all the vehicles listed, and have no clue about part numbers. So I don't know if its a crap shoot as far as the ecu goes, or if you need a unichip to use them, but they are not a toyota dealer. Mine is complete, not like those. As for the exhaust, its too much trouble to swap for the few hundred bucks I'd get. If no one wants a supercharger after all the crying about not being able to get one, I can't imagine there being much of a market for a used exhaust that is readily available on ebay for 619$. Sorry.