Reviewed By William M (Virginia, MN) Reviewed for a 2006 Pontiac GTO —10/21/2016 9:23 PM
The DiabloSport in tune real woke up my GTO, alot more torque and power, Best HP for the dollar.
Reviewed By michael c (fort pierce, FL) Reviewed for a 2005 Pontiac GTO —4/17/2012 7:09 AM
I'm getting about 3- 4 mpg better, performance is difficult to rate. It needs more tuning options for the novice who is not familiar with the settings. There is not enough info with the product that tells you what different features do. Install is easy, as long as you have some computer skills, basic skills. Big price tag, not sure if its worth the bux.
Reviewed By David B (Wood Dale, IL) Reviewed for a 2017 GMC Sierra —3/13/2017 9:18 PM
Item shipped immediately. Really like the compact design. Shows lots of customization information about my Duramax. Intead of windshield mount I used a shot ram mount with ball to attach to the driver grab handle. Mounts out of the way but easy to see.