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1999 Chevy Silverado Power Programmers & Performance Tuners

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Latest Customer Reviews

Bully Dog GT Platinum Tuner (49-State Legal) Reviews

Bully Dog GT in a 1999 Chevy Silverado 5.3

Reviewed By Tony P (ROLLING PRAIRIE, IN) Reviewed for a 1999 Chevy Silverado —8/3/2014 7:31 PM

I am very impressed with the programmer. It made a impressive difference in power. I never used to spin 35s unless it was wet out. Shifts are solid now and mpg is a little better. It is somewhat noticeable, but definitely worth it. It is somewhat confusing during installation. Youtube helped with my confusion but its in and working. The screen is also kind of smaller than i expected. Smaller than a iPhone 4 screen.

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Hypertech Max Energy Programmer Reviews


Reviewed By Jason W (BILLINGS, MT) Reviewed for a 1999 Chevy Silverado —12/4/2012 7:07 AM

With the discounts that AutoAnything offer made this a smoking deal! I am very satisfied with this programmer. It really "woke" up my truck.

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DiabloSport Predator P2 Tuner Reviews

awesome product when used with a custom tune

Reviewed By nathan w (Valparaiso, NE) Reviewed for a 1999 Chevy Silverado —4/6/2012 6:31 PM

great tuner bought it for my 99 silverado, had put headers on no cats, cold air intake and throttle body spacer, and dynomax exhaust, tried both the 87 octane tune and diablo tune, didn't work the best but then was able to have a tune customized for my truck, really brought my truck alive, never downshifts up a hill 0-60 no problem, all around runs stronger. a custom tune might run 100 bucks or so but tons of things you can play with and adjust on predator. great tuner and is well worth the money.

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