I was wondering if anyone has done this. If this is worth doing. I have a 2003 f 150 with a 4.2 v6. I pull a small trailer for work and would like to increase horsepower. I have read about the chip, but I was hopiing someone has use one and had an opinion about it. Thanks

 

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Did you ever get that chip? Is so how well did it work, or not work for you? I am interested in getting one myself!