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GMC DiabloSport Performance Chips & Programmers

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Latest Customer Reviews

DiabloSport inTune i2 Tuner Reviews


Just what the Dr. Ordered

Reviewed By scott w (Edmond, OK) Reviewed for a 2009 GMC Sierra —9/7/2017 8:41 PM

I needed the Diablosport tuner to turn off my obnoxious AFM, and it did as promised. It also delivered harder shifts and more power even in the mildest tune. The surprise was that my Sierra now has an extra 30 minutes of highway range due to more MPG.

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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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DiabloSport Extreme Power Puck Programmer Reviews


Best bang for the buck on a 6.7L!

Reviewed By Charles P (Clarksville, TN) Reviewed for a 2008 Dodge Ram —4/8/2009 8:52 AM

Easy to install and it made a huge difference in power.

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