well twin turbo for me is not gonna happen. the guy that was gonna do it for me backed out..it went from were gonna do it in a month or so here is what you need to buy. so i bought. then it was next month , next month and now not even returning a email..so here i sit with alot of money out of my pocket and nothing to show for it...so now my question to you folk is this. 1 of the things i bought was a 16cm housing for my stock 35 right now i am running the stock 35 with a 9cm housing. would it be worth my time to swap housings? will i gain anything by it?

 

A HY35? I had a HY35 with a 9cm housing, and went to a HX35 with a 12cm housing and it's much better. Top end opened up due to the extra airflow. A 16cm won't spool up as fast, but breath better on the top end.

 

will it reduce my drive pressure?

 

I can only imagine it would, you are giving it almost twice the room to exit the manifold and get into the tail pipe.