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GMC Performance Monitors

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Latest Customer Reviews

DiabloSport inTune i2 Tuner Reviews


Best Tuner on the Market

Reviewed By Steven Y (Haleiwa, HI) Reviewed for a 2015 GMC Sierra —6/7/2016 1:52 PM

I owned a I-1000 and it was ok. This newer on is faster and you don't have to press extremely hard for the buttons to respond.Also going back to stock is way faster than the first series.

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


Screen is the right size.

Reviewed By Frankie B (WAVERLY, KS) Reviewed for a 2013 GMC Yukon —5/18/2016 11:23 AM

Fairly easy to download and install tuner. Screen large enough to easily read but small enough to not be obtrusive. Good menu services.

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DiabloSport Trinity T-1000 Programmer Reviews


Exactly what I was looking for.

Reviewed By Donald S (TECUMSEH, OK) Reviewed for a 2005 GMC Sierra —2/13/2016 7:22 AM

Tuner has very good tunes an abLe to upload custom tunes via download or micro chip. Can't beat this tuner the Trinity customer service SUCKS!! I emailed them asking how to make the tuner to power down once the ignition is turned off after 4 days I got a response from them, all they said is to unplug it from the ECM port. When i mentioned wanted to use the gagues feature while driving the CS Rep came back with "sent it back where u bought it an get a refund then". That isn't cool at all.

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