Singh Autosport claims they are first to tune as well as 100 hp gains on the 2011 CL63 AMG with the M157 twin turbo V8
We aren't sure what to say as this has become a repeat pattern now with Singh. They are claiming they are the first tuner to tune the CL63 AMG in North America. Yet, the dyno provided is not a North American dyno. Somebody make sense of that. Also, Singh claims to have tuned a CL550 yet they are waiting for the car to adapt before putting it on the dyno. Huh? So no custom dyno tune? This all just does not make much sense and we would like to see some real proof.