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Originally Posted by Gotts2BMe
Did you put another bigger piece onto the airbox that goes back into the fenderwell? If not you are drawing in hot air from the engine bay rather than the much cooler air from inside the fender
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Hey everyone FYI I was talking to Bill who wrote the program for edge on the F150's and he said that on the dyno they saw about a 8 hp increase just by removing the piece that goes in the fender
