Sounds like a stocker, I really am looking if anyone knows if its a carbed unit, 84/85 or an 86/87.... This is the info I have, just helping out a friend.
on the turbo itself: garrett-o, AR/60
on the exhaust housing 255/86,M3-A-G2
and A/R.63-M3-G3
on the turbo itself: garrett-o, AR/60
on the exhaust housing 255/86,M3-A-G2
and A/R.63-M3-G3