Now that the stock air intake is gone, only the battery box side of the IC duct is open. If I blocked that side, the IC duct would just about be pressurized. That should help.? Of course the battery might not like it.

DO the after market stock mount IC ducts leave the battery cooling path open? If not where does the battery get air?

 

I have the duct from M2 and there is not a duct going towards the battery. I don't have the box for my battery so it is always getting fresh air.