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GMC Sierra DiabloSport Performance Chips

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Latest Customer Reviews

DiabloSport inTune I-1000 Tuner Reviews


lots of adjustments

Reviewed By Daniel B (akron, NY) Reviewed for a 2014 GMC Sierra —3/25/2015 3:07 PM

pretty nice tuner for the money. a bit complicated without much info sent with the tuner to know what some changes are. iv had three different Hypertech programers over the years and feel this has a more noticeable power improvement.

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DiabloSport Trinity T-1000 Programmer Reviews


Nice tuner.

Reviewed By Cody H (SODDY DAISY, TN) Reviewed for a 2004 GMC Sierra —10/9/2014 8:48 PM

Bought this tuner to go along with my full exhaust and intake. Made a very noticeable difference in power and the way the truck shifts. No mpg improvement that I've noticed, but not why I bought it. Would definitely recommend on GM trucks. Also allowing for custom tune is nice as well.

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DiabloSport inTune I-1000 Tuner Reviews


MPG+++

Reviewed By Jesse R (Suffolk, VA) Reviewed for a 2015 GMC Sierra —3/14/2015 1:12 PM

Works as described. Very easy to use. Can adjust many different setting if you chose to (shift firmness, speedometer for tire size and/or gear ratio). MPG average increased by 6mpg for a 37% increase. Very happy with this product.

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