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2003 Chevy Avalanche Performance Chips & Programmers

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Latest Customer Reviews

Hypertech Max Energy Programmer Reviews


Good power and Mpg

Reviewed By Diego P (milpitas, CA) Reviewed for a 2003 Chevy Avalanche —3/18/2017 10:25 AM

I order the hypertech max tunner for my 03 chevy avalanche 2500 with the 8.1 litter, just to get a little bit more power and mpg, and I was surprised with the results I haven't gone to a Dyno but I definitely feel increase in acceleration and my mpg went up 3mpg more witch is great for the price.

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Jet Performance Module Reviews


Jet Performance Module Stage 2

Reviewed By marcus g (Edwardsville, IL) Reviewed for a 2007 Chevy Avalanche —2/18/2017 5:27 PM

This performance module was key to all of my MODs performing as they should. The throttle response is crisp and when pulling through the RPMs and it feels strong. The shift points are higher feels much more performance oriented. My MODs include, Jet Performance Module stage 2, Jet Performance throttle body, full cold air intake, MSD coils, 8.5mm plug wires, shorty headers, throttle body spacer, high flow cats and exhaust. I do run 91+ octane and Royal Purple oil. 5 Stars!

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Edge Evolution CTS2 Programmer Reviews


Good Programmer, did exactly what i bought it for

Reviewed By Henry K (Celina, OH) Reviewed for a 2005 Chevy Avalanche —9/13/2016 8:23 PM

AutoAnything had fast, on time shipping and great packaging. Had a little trouble installing the programmer due to some aftermarket mods(remote start). Eventually got installed by removing some fuses and is now simple to do when switching to a different tune. Saw instant gains in MPG, around 2.5 MPG on economy tune. Also some noticeable torque, power, and acceleration gains on economy which is what I have it on most of the time. Bought mostly for better MPG and did just that.

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