My engine builder should have access to a t4 9180 in the next week we were considerig it for my 3.2 build. Sound performance (possibly vested interest in making the PT look better) tested a 8374 on 2jz made less hp and spooled only slightly quicker than a open scroll 6266 so I'm really confused whether to give the 9180 a go or run with the 6766 that I already have.