All,
I am looking for a shop around the DC/Metro Area, where they do tuning on my car. I want to install the JB4 Stage II, since Dinan decided not to develop any software upgrades for and N54 six inline engines. Dinan concentrated its effort on the 550i and 550GT models (N63 engines) from 2011 and up...
Open for suggestions on what to do about the tuning and shop preference.
In advance thank you so much...
