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2003 Chevy Trailblazer Power Programmers & Performance Tuners

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Latest Customer Reviews

Jet Performance Programmer Reviews


4.2 GAME CHANGER

Reviewed By Linda R (Titus, AL) Reviewed for a 2008 Chevy Trailblazer —10/19/2017 4:11 PM

Jet seems to be the only programmer that works for the 4.2 chevy inline 6. No problem with the installation and I noticed an instant increase in the low end power. this is where the 4.2 really sucks. Don't know why they did not use the 4.3.

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Superchips Flashpaq F5 Tuner Reviews


Happy customer, WOW it really beef up the horsepower crazy

Reviewed By Andre T (Toledo, OH) Reviewed for a 2007 Chevy Trailblazer —4/8/2016 2:11 AM

Extremely happy, when I put my foot in it you can really tell the difference, I recommend this Superchip for anyone who wants to increase their horse power

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DiabloSport Predator P2 Tuner Reviews


loving the quality of Thai prageammer

Reviewed By MICHAEL D (Fredericksburg, VA) Reviewed for a 2006 Chevy Trailblazer —4/8/2008 5:20 AM

very easy to use, power gains are very good and better shifting from the transmission. It is worth every penny.

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