Hypertech power programer

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Had a b&m an my last truck, not the in tranny kit but the switch, wow that thing worked great. I am not going to install anything(tranny kit) because I am still looking for an SUV.

I do believe I have the 4l60e not the 80

 
Hypertech is crap. Spend your money on a custom tune (which is usually cheaper), or a programmer that you can change everything yourself (usually the same price). And for the "firmer shifts," all it does is increase your line pressure which is very bad for your tranny. I used to have one and it almost killed my tranny. When it would shift on top of third, it would miss 4th about 2 times at WOT.

 
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