Originally Posted by
Chris__RC
I think that is an onroad engine.....
oops my bad.

by the way, i've a used c6 but how to tell which version is it? the prints on the heatsink are totally 'un-readable'.
it uses a turbo plug and with red 7mm venturi. BBT, BBTII or BBII?

on the rod there's a '05' engraved.