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GMC Sierra Performance Monitors

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Latest Customer Reviews

DiabloSport inTune i2 Tuner Reviews


Great results

Reviewed By Jason B (Flowood, MS) Reviewed for a 2014 GMC Sierra —2/21/2017 8:11 PM

I used the tuner to adjust my speedometer for larger tires I put on my truck. That plus the fuel saving setting increased my mpg by almost 20%. I haven't had time to play around with the other settings yet. It's very easy to use. The whole process including reading instructions took about 10 mins.

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Edge Evolution Programmer Reviews


You can feel a difference

Reviewed By Bobby S (Bulverde, TX) Reviewed for a 2008 GMC Sierra —1/13/2017 5:56 AM

Easy to install and you can certainly feel a difference in torque/power. Easy to install and the extra gauges are neat. The only issue I am having is that when on the highest setting and I run wide open it makes my truck ping a little. I'm gonna run a few more tanks of premium fuel through the truck then investigate further. I will purchase this product again for my future vehicles.

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


Buy it.

Reviewed By Michael P (Chehalis, WA) Reviewed for a 2006 GMC Sierra —9/23/2016 6:58 AM

After a month of solid research i decided to go with Bully Dog. Very easy install, excellent graphics, produces the best information from your vehicle. The Tow tune turned my sluggish truck into a sports car like feel to the drivetrain, great shifting, and perfect use of the 5.3 power band. If you have the chevy trucks made between 2000 and 2007 (classic) you should have this tuner.

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