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GMC Yukon XL Power Programmers & Performance Tuners

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Latest Customer Reviews

Hypertech Max Energy Programmer Reviews


2004 gmc yukon xl denali 2500

Reviewed By shane f (Altoona, PA) Reviewed for a 2004 GMC Yukon XL —5/30/2015 5:13 AM

This programmer functioned as intended. It boosted horsepower about 10% which raised my average mpg by 21%. Three extra mpg may not seem like much, but when you're averaging 14 it really helps overall.

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Range Active Fuel Management Disable Device Reviews


Range AFM Disable

Reviewed By Mark Z (MOUNTAIN TOP, PA) Reviewed for a 2015 GMC Yukon XL —3/17/2015 8:39 AM

Installed on new 2015 yukon xl. Takes a second to plug it in, and after 3weeks my mpg is the same it was without the disable. The truck doesn't have the low rumble in 4 cylinder or the bump when it would change from 4 to 8. So if my mileage is the same it's kind of a no-brainer. Only wonder about dealer picking up on it. I'll give it 4 star for now 5 star when there is no long term issues.

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


Bully Bully for Bully Dog - I Like This!

Reviewed By Thomas F (HUNTSVILLE, AL) Reviewed for a 2004 GMC Yukon XL —11/27/2013 3:51 PM

I chose BDog because it would also display tranny temp. I've been towing a 24', 4900 lb RV with a Yukon. Upgraded to a 34', 7400 lb RV. Pulling the old RV, I got 10.3ish MPG (w/o BDog). I installed the "tow" program & towed the newer RV & added 2 kayaks on top of the GMC and got 11.2ish MPG. On the hwy not towing, my MPG went from 17.9ish to 20.1ish MPG (using the GMC trip comp). On my GMC, you have to remove fuses to program the BDog but just install "tow" & leave it, no reason to change.

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