Comp EZ Lynk Auto Agent 2 Tuning for GM Duramax 11-16 6.6L Tune Link
EGR can remain intact with tunes in vehicle.
Comes with 5 files to choose from-
Level 1 Tow
Level 2 Street
Level 3 Performance
Level 4 Extreme
Smart phone not included. Must have a capable device running on iOS Apple Software or Android Software. Can be used on an iPad as well.