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Unread post by 4wheeler » Tue Mar 28, 2017 10:40 pm

2011 5.3 engine, is there an adjustment that can be made on the computer to increase horsepower? Could really use an answer thanks ahead of time.

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Re: Horsepower

Unread post by carriedi » Thu Mar 30, 2017 11:11 am

there are no adjustments that can be made. you have to alter programming. that is not an adjustment.

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