I lowered my DHM IC so it sits right on top of my DIY undertray to clear more direct air to the other coolers and lower the CG a bit. I now have an ABS divider that goes from the top of the IC to the crash bar and nearly finished with side plates on the IC and then will finish up the upper ducting so all air that gets through the grill has to go through the coolers.
One thing I have posted many times but have not seen anybody else do is open up the radiator support below the radiator to allow more air out of the back of the IC and not get blocked or force up to the radiator, etc......I have done other things as well but harder to explain.
The more you address air flow through the coolers, and out from the engine bay, the better things will be and there is much to improve upon.