I'm running the 0.83 A/R housing on my setup, and honestly would not really go with the IWG setup on a "stock location" housing. Was not too pleased with the GTX3071r or GTX3076r IWGs I have had in the past. Rotated with EWG really is the way to go in my personal opinion. The stock location Garrett housings really start choking and facing backpressure problems north of 6000 rpm, and boost begins to drop off.Thanks for the reply! We're trying to get info from Garrett in the IWG V-band housings, but so far they only offer it with the small ones
When I had the GTX3076r, I tried to remedy this by sealing the IWG flapper and using an EWG, however the improvement was minimal. The issue was not that the IWG port was too small, but the stock location housing was too restrictive.