Reviewed By Michael M (Holmes, NY) Reviewed for a 2009 Pontiac G8 —5/17/2016 6:49 PM
It was very easy to use and made a huge difference in the acceleration and shifting on my 09 G8 GT.
Reviewed By Angelica D (ROSWELL, NM) Reviewed for a 2011 Chevy Silverado —5/15/2016 11:05 AM
You can feel the difference right away after installing the diablo tune using 90 octane. not so great on the cheap stuff but its worth the money easy to install and to play with no more lag after punching the throttle best part is the custom tune it really wakes up the engine