Genpu FMIC efficiency vs turbo size

I have recently gotten a custom bar and plate Intercooler built which fits beneath my oem pu crashbar (23.5” x 7.25” x 3”) > it’s similar to a TR6 or Cobb core.. will the flow rate/pressure drop be suitable if/when I upgrade to a CST4 ? It seems like most people with mid-frame turbo upgrades run TR8s for front mounts but Treadstone says that a TR6 is 400hp efficient and I won’t ever run over that to stay safe on my stock block