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GMC Sierra Bully Dog Performance Chips

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Latest Customer Reviews

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


Amazing

Reviewed By Sesar C (East Wenatchee, WA) Reviewed for a 2009 GMC Sierra —3/7/2015 12:54 AM

The reaso I bought this unit to get rid of the AFM in my truck I install a 3" exhaust no difference runs even worse after I install the tunner wow what a difference no more AFM now my truck sounds great runs even better lots of power my transmission shift really nice highly recommend.

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


Review

Reviewed By Guy S (Sneads Ferry, NC) Reviewed for a 2011 GMC Sierra —11/7/2014 9:02 AM

I have a GMC Sierra, 2011 5.3L vehicle... This item roughly increased my MPG from 17 to 19.5 for both highway and city use. Now I was really concervative with my driving, if your punching the gas pedal your not going to get close to that. The system did change the shifting of my vehicle, I notice an improvement of shifting and responsiveness, the only problem I had with this was a faulty cable upon purchase. I called and a replacement was sent to me automatically free of charge! Good service!

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


dissapointed

Reviewed By Jon H (South Dennis, MA) Reviewed for a 2011 GMC Sierra —8/30/2014 1:31 AM

The bullydog has not lived up to any hopes for me to improve mpg. But first of all, the package says you can change on the fly. Well you cannot and it takes 7 minutes to delete or add a program. So if you want to experiment, it takes 14 minutes to change to a different program. Secondly, the unit is so small that it is a struggle to read the info. Lastly, there was absolutly no change in mpg, there was more pep for sure, but that is not what I was looking for. I will be returning this unit.

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