I will be installing Wide Band in my car soon and need opinions as to where to weld in the bung for the 02 sensor. The instructions say 18" from the exhaust port or at least 36" if running race fuel ( which I do). My question is since I am going to up my exhaust to 3" can I put the bung in the pipe just after the header or will that be too far away and better in the header?? Thanks!! Greg

416 stroker from Nick at Compu-flow. 11.14 in full street trim. Seems like a new best every time out.
11.06 open headers----so far!!