1.25 t4 VS 1.10 t6

On a Borg with a 96mm exhaust wheel, would these two housings “act” similar and have similar performance (spool/backpressure)? My setup is for t4 now, but could easily be converted if the consensus/profs shows that the t6 housing will perform better. Let me know your thoughts/opinions. Thanks guys!

I cant help on your question, I would wager not many have tried those two on the same setup. What is it running for boost/backpressure now?

It would depend how deep the heat shield is set into the front volute and how much of the scroll is removed. Many of those modified housings are done differently which will impact the result. If done in the same fashion the T6 housing will reduce back pressure slightly but I wouldn't look for much in the way of a performance difference.