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 Jeff H (INDIANAPOLIS, IN) Reviewed for a 2009 Pontiac G8 —1/10/2013 10:35 AM
This was my first tuner that i have bought. the ease of install is great. if you use the little pamflit that comes with it you will be up and running in less than 5 min. before you start messing with all the nice features this has i recommend that you read the manual. i have noticed a killer throttle response and my shift points make more since. haven't noticed that much of a MPG increase yet but with any upgrades your foot seams to be heavier on the long pedal to test what you have.