Originally Posted by
revs1
was told to put one in so they could re map it?
No idea then mate lol is it still on a 2wd ecu? unless they wont to check the afr from there or is it going on wasted spark? i have one in mine on the down pipe about 4 inches from the turbo but its there for my afr gauge when its mapped the workshop one is used that gos in the tail pipe!