16cm T3 holset,T3 Garrett AR.84,T3 18.5cm Holset.
What I noticed is that the 16cm housing physically looks the same size as the .84 t3 Garrett housing while the 18.5 cm holset is is bigger than both.
The
18.5cm housing is bigger than this .84 Garrett and I'd go out on a limb and say it's somewhere between
.89 to 1.00 AR or less than 1.00. Perfect for what I'm looking for!
Remember the Garrett housing is a divided t3 housing as well as the Holset housings.