The inside rear wall of Trumpeter's model has a number of problems and can be improved.
The surface of the wall is part E25. It has six protruding posts (circled here) that should not be present. They existed only in the earliest Tigers.
This tube did not exist in Late Tigers, so you should not use it. Its attachment points should be erased too. Again, it's an "Early Tiger" feature that was long gone by the time of "Late Tigers".
The tube was anchored by this tab on the support frame. The tab didn't exist in "Late Tigers", so you can simply cut it off to improve accuracy.
Here's an assembled model. I have marked the items that don't belong.
This is the inside rear wall of an actual "Late Tiger" for reference.