Today at lunch time a couple of co-workers were following me. Back at work they told me when I got on it (had to show off a little) black smoke rolled out of the pipes. They assured me it wasn't blue, I can understand an older car that has some carbon build-up but not a new one. I do drive it daily so it shoudn't be build up. Any insight from you technologically savy ones?

 

A/f in the 12-12.5 range...which is typical of what's been posted on people's base dyno sheets.