Description:

Used for about 7 months. I am getting a full tune so I no longer need this. This has been a great piggy back system - definitely made some impressive improvements in power. This was currently on my 2017 GLE400 but is made specifically for all M276 motors - 400 and 43 with the M276 bi-turbo motor. This still has a free reprogrammable option as I have never used it. It comes with all the instructions and original box. 

7 Maps
2-Year Engine warranty
Warm-Up timer
1 Free reprograming (for a different car)
Blue Tooth App Control