Features:

  • Eliminate downshifting when climbing hills Speedometer correction for changes in tire size and gear ratio*
  • High-definition, 2.8" color screen
  • Easy to use 5 button interface
  • Increased memory with faster processor for improved tuning & updating speed
  • Performance tuning for Economy, Towing, Daily Driving, & Extreme Tuning
Awesome product. Really Wakes the truck up!

Used this on a 2016 GMC Sierra Denali w/ the 5.3L. I've never had any experiences with a tuner but when I tell you this thing woke my truck up, I really mean it. These trucks should come from the factory tuned this way. I used the 87 performance tune and cannot believe the power. The truck will roast the tires with half throttle on take off, the transmission shifts are so much smoother (which I didn't think was possible with these clunky 8 speeds), and it's just an overall more enjoyable driving experience. I feel like i have a whole new truck again.

Easy to Use!

Bought this to Disable the AFM/DOD on my 2008 Silverado. Received New, and well packaged. Did an update, right out of the box as suggested by manufacturer. Very easy to use. Had to use a magnifying glass to read the small instruction pamphlet, but that seems to be the norm now days! Easy to follow instructions are prompted by the unit after you plug it in to your OBDII port. Worked as represented. Haven't done a Performance tune yet, but I suspect it will work as well as it did on the AFM/DOD Disable. Youtube has several videos posted that show this product used for various performance tuning. All seemed to work as expected. A little expensive, but local tuners wanted close to the price of this tuner to just "Turn OFF" the AFM/DOD on my truck! Glad I bought it!

Best Tuner

Recently had my lifters done on my 2008 silveraydo (thanks GM). And wanted to take off the AFM. This worked great. Was able to change my tire size, increase my MPG. When from 15/16 on the highway to 17/19 with the 87 tune. Haven’t tried the 93 tune do to the fact that it’s $3.70 a gallon where I live. I had a bully dog on my 2005 2500hd 6.0 and I have to say this tuner does the same thing for $200 less. I wish I could buy more licenses with this tuner for another vehicle I have. Over all a great tuner. I don’t regret buying it.

As Advertised

Tried it one last time before returning to amazon and the device worked. Very simple instructions. I dioblo tune with 93 octane. Definitely more power

Fixed My Truck! Perfect!

2008 GMC Sierra 160k miles. Truck runs rough when AFM is activated, i.e., switching from 8 to 4 cylinders. It was especially noticeable when slowing to a stop. You could feel the vibration in the engine. Knowing the lifter issues caused by AFM, I was looking to delete that function. I updated the firmware on the Predator first, plugged into the truck, and then followed the instructions. I chose the Diablo Tune and deleted the AFM in the custom menu. Absolutely perfect. No more vibration and much better drivability. More pep for sure. For less than one new truck payment, I fixed the biggest complaint about my truck.

Cheap power

Installed 87 tune but have not had time to play with the other settings. With the canned tune i feel firmer shifts and an increase in power. The weather has been crap but i did a 4 wheel drive launch and i was impressed. My truck is a 2016 ltz midnight edition with the 8 speed trans a cai and muffler. Would recommend to anyone with this set up.

My Silverado finally dropped it balls after using this programmer.

I struggle by debating if I would go ahead and use a program on my 2016 Silverado. Researched all the programmers and read all the reviews. Diablo sport was the obvious choice. The V8-V4 mode drove me batty. Sluggish performance. All gone Now. This is a excellent buy. I swear my Silverado feels like it finally dropped it’s balls. I just did the quick set up I can not imagine what my truck will do when I go back for much more detail programming.

2013 Silverado 5.3l made new again

This was super simple. By shutting off the DOD I actually gained mpg! I was hovering around 11.3mpg and now am at 14.7mpg with 10.5in of lift and on 35s. The added power, mileage, tire size correction and transmission shift point change has made a huge difference in this 5.3L 2013 Silverado

Good product, Worth the money

Does exactly as described. Really helped my 2003 Silverado 5.3 turn 35” tires. Also did correct speedometer. It will make a difference but don’t expect 50hp. Easy to use. Worth the money in my opinion.

Can't buy power this cheap!

Amazing product, very easy to use. Gain 10 to 20% fuel on eco tune and easily gain 10 to 20 hp on diablo tune. Also allows for trans tuning

Full Reviews