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I'm looking at a couple trips within the next month that I'm taking my truck on. One while towing the other without. I have a 2007 Sierra 1500 ext cab with the 5.3L gas engine only performance mod is the K&N cold air induction kit. Is it worth buying a computer programmer for extra gas mileage empty and the extra power for towing? Anyone have a computer and can offer some input? Type of computer and increases (power/gas mileage) would be great!
Thanks!
 

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I have a super chips programmer that I used on a 5.3 L, saw increased power but not better gas mileage and you have to buy premium fuel. If you need the power for towing, yes I guess they are worth it. I have a 6.0 L now and haven't used it since I bought the 6.0 L.
 
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