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2004 Chevy Astro Performance Chips & Programmers

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Latest Customer Reviews

Jet Performance Module Reviews


No major problems with it

Reviewed By William K (Chicago, IL) Reviewed for a 2003 Chevy Astro —11/23/2011 6:11 AM

Instruction manual was incomplete; did not have my Astro van listed. Called help number and they helped me. Can't really feel any difference in performance. Haven't checked gas mileage yet.

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Hypertech Max Energy Programmer Reviews


2014 Silverado 5.3

Reviewed By Joseph P (WARNER ROBINS, GA) Reviewed for a 2017 Chevy Equinox —12/1/2017 9:27 AM

The programming was easy. I turned off the AFM to test the claims of other reviews that actually increases MPG, that's BS. MPG actually dropped. However there is a nice increase of hp. The dyno rating are on Hypertech's site. I will be turning AFM back on though.

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Hypertech Speedometer Calibrator Reviews


It works

Reviewed By Ben C (LOUISVILLE, KY) Reviewed for a 2010 Toyota Tundra —11/28/2017 4:18 PM

Easy to set up. Works like it should.

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