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I always imagined that if the Air Foil did anything, it just unnoticeably promoted air flow direction towards the valve openings at the cost of the IAC's intake through its inlet.
Remember the spare tire played a part of the structural engineering to limit damage during a rear end collision. That is why the spare tire delete structural bar was put in place when the spare tire was eliminated. Just keep an eye open on the cars behind you if you have to stop suddenly.
Remember the spare tire played a part of the structural engineering to limit damage during a rear end collision.
Where'd you pick up that tid-bit?
I think, unless you can show otherwise, that a better way to put it is: "The spare tires was there during crash testing. With out it, there may be slightly different rear crash results"....or something like that. IOW, I HIGHLY doubt that the tire was an engineered part of the impact plan.
My latest high performance part is.........
