Hi. I was asked to look for a dealer or distributor of On-Board Computer Box for Dodge Ram. Do you guys have any idea where to buy it particularly in San Francisco? Btw, I'm new here. Any help would be highly appreciated.

 

What you are looking for is call a SMEC - Single Module Engine Controller. I have never heard Dodge ever call them OBC...
You find SMEC's at junkyards and dealerships.

Hope that helps