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2005 GMC Sierra Performance Chips & Programmers

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Latest Customer Reviews

ScanGauge OBD II Scanner Reviews


Love it!

Reviewed By ryan w (Cassville, MO) Reviewed for a 2005 GMC Sierra —7/18/2017 4:54 PM

Easy to install easy to use does everything that i need it to do

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Bully Dog GT Platinum Tuner Reviews


Fuel Economy

Reviewed By Howard M (ENTERPRISE, AL) Reviewed for a 2005 GMC Sierra —12/13/2013 6:07 AM

I purchased the Bully Dog to increase fuel economy on my 6.6 GMC diesel. At first it didn't seem to make any difference so I called their tech support (they were great!) and discovered I did not have the settings correct. Since then I have seen an improvement on mileage and I love the different feel in the over all performance. I am glad I made the purchase!

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DiabloSport Predator P2 Tuner Reviews


Good product!

Reviewed By Cory C (Gray, LA) Reviewed for a 2005 GMC Sierra —4/27/2012 11:01 AM

Definitely like the HP increase on the 87 octane tune. Haven't tried the 93 octane tune yet. I have seen an increase in MPG's but haven't ran a whole tank through yet to have an accurate MPG gain.

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