i'm also interested. mine is MS gls-v.:
1. how about fuel consumption? lets wait for racechip to answer this
2. have you tried it in car like mine? experimental model hehe lets wait for racechip to answer this
3. how can we verify the HP/torque gain? trust or we have to dyno it... yes sir pwede po ipadyno
4. included na ba installation and harness? Free installation and harness