Air to Air is the only way to go in my opinion. ATI makes a 3 core for mustangs that run about $1100. There intercoolers are pretty consistant on keeping the intake air at about 20 degrees above ambient, on a hot summer humid day. Especially runnin 12 lbs i would definately recommend 3 core air-air, its the best for all around conditions, daily drivin or friday night racing.
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