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2013 GMC Sierra Performance Monitors

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Latest Customer Reviews

DiabloSport inTune i2 Tuner Reviews


Awesome Tuner

Reviewed By Steven G (LIVE OAK, TX) Reviewed for a 2013 GMC Sierra —2/18/2016 11:07 PM

I have a 2013 GMC that I wanted to get a little more power out of. This has definetly woke the truck up. It's simple plug and play. There are preset tunes that you can choose from or you can customize your own! I would suggest this product for sure!

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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 2013 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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Edge Evolution CTS2 Programmer Reviews


Best investment

Reviewed By Andrew M (New Milford, CT) Reviewed for a 2017 GMC Sierra —5/9/2017 4:20 PM

By far best mod done to my 2017 Sierra Denali 6.2, made throttle response so much crisper. Just having an issue with the performance tune, but edge has the best customer service so not worried

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