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If you are talking about the REAL Ram-air system that reverses the intake filter and comes out in front of the radiator, then yes it works..
One of the TWO types of real ram-air systems that work. I tested it at the track on my '85 and picked up .15 and almost a full MPH in the 1/4 in back to back tests.. Pulls quite better at 60+ on the highway too..