i have some questions that i need to know the answer. does the mod allow for downshifting at any rpm? ie: if i hit the down paddle by mistake in 4th at 4000rpm will it shift to 3rd and pop the trans? this is the main fear i have with any of the tcu mods. also am i correct in thinking this mod affects both auto shift and manual mode? does the price inc. any upgrades that come along in the future? price is in the ballpark just want to make the right choice.