Does one size fit all ??
 

Hi
I noticed in the Chevrolet Truck Forum, they were talking about Trans Dapt TBS, improving gas mileage, I looked them up in JC Whitney and they were vage about what they would fit on, how do I know which fit a F-150 5.4L, Has any one tryed one on a F-150 5.4L and with what results? Would it be worth my time and money?
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