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2003 Chevy Tahoe Performance Chips & Programmers

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Latest Customer Reviews

Superchips Cortex Programmer Reviews

'03 Z71 Tahoe, 5.3L V8

Reviewed By Thomas P (Shreveport, LA) Reviewed for a 2003 Chevy Tahoe —9/8/2011 1:46 PM

Just crossed 150k miles on my Black Mamba. She felt so dang tired compared to how peppy and zippy she was brand new, so I started looking for ways to improve my performance. Wasn't looking for a race car (it's a Tahoe, for pete's sake), but I wanted to be able to floor it across an intersection from a stop sign if I had to without feeling I might get hit by traffic. Superchips was able to help. I installed the Performance tuning (haven't tried the other tuning options yet) and now she's quicker off the line, has muuuuch better throttle response, shifts much harder (sometimes I even wonder if she shifts too hard and I'm hurting the transmission maybe), and I can definitely tell there's much more power throughout the entire range of RPMs. It's especially noticeable at slower speeds (at 20-50 mph increased power is certainly noticeable when I give it some gas). Installation was a snap, followed the instructions and it took a total of about 10 minutes. When it initially started installing, my warning lights all went nuts and scared me a bit, but it all returned to normal after installation was complete. All-in-all, I recommend this product for anyone looking for a bit more excitement and functionality. Next I'm going for the K&N performance intake.

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Superchips Flashpaq Tuner Reviews

Amazingly simple enhancement!

Reviewed By Brian G (Thousand Oaks, CA) Reviewed for a 2002 Chevy Tahoe —7/30/2015 9:35 AM

Primary purpose was to "tune the Tahoe" for towing. Setup instructions could be clearer: 1. Downloaded setup SPARK went to UPDATE got error "Do not have updates for your vehicle" Call 888-.....Called tech said needed to plug into OBD II port get vehicle files. Got Stock files. 2. Got another message "Need to Charge battery first" Nothing mentions flashpaq needed to be charge? 3. Display Setting does NOT have a EXIT choice when done. Felt the difference immediately on the freeway onramp!!

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DiabloSport Trinity T-1000 Programmer Reviews


Reviewed By Joshua T (BELTON, SC) Reviewed for a 2015 Chevy Tahoe —10/29/2014 8:51 PM

I like that you can custom tune with it and do away with the soccer mom safety features

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