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Recommended Programmer for 2003 Chevy Silverado Z71 with 5.3L Engine with Greatest HP Gain  

Published 01/31/2020

Question:

Trying to find the best programmer with the most hp gains for my 2003 Chevy Silverado Z71 5.3

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Expert Reply:

I recommend using the Superchips Flashpaq F5 Performance Tuner # SU2845 which will provide you with an additional up to 18 HP and up to 17 lbs/ft torque when run on the performance tune. This unit plugs in the OBD-II port on your vehicle and comes with a high resolution color LCD screen that is easy to read. I've linked a brief video on this Superchips tuner for you to have a look at, as well. This tuner is going to provide you with the biggest potential increase in HP at a good price point.

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Erik B
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