May be a shot in the dark but just switched to a 45R based turbo from a 42 based turbo. Obviously I expected to lose some mid range but was curious what kind of powerband any of you guys may be seeing with 7285s or 7685s if you don't mind sharing dynographs either online or in private I would appreciate it.

 

Your question is way too vague for any type of legitimate answer without vital setup information.

We need a complete engine and drivetrain parts list, ETs, and so on before we can give an answer with any merit to it.