The test cars i've seen had TB, plenum, exhaust, pulleys and then they tested the CAI, and it gained 10HP but up the RPMS it was lower than that, but like i said, a CAI wouldn't be my 1st mod, be the last mod as a easy bolt on. But if i could go back, my first mod would have been atleast cams or heads. I wish i would have done the 5.4 and just bought the heads and cams, then the rest could have followed.
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