Mercedes-Benz GLK X204 V6 Sound Design + Custom Exhaust

2012 Mercedes-Benz GLK 300 (350) X204 3.5 L. V6 M276 Petrol engine (249hp/340nm stock) Tunes: Factory firmware 306hp/370nm - Dyno ~309hp/~390nm by AmbientMB Custom exhaust with stock cats/resonator by Rexhaust All firmware modes for gearbox (E/S/A(S )/M) by Ambient MB