The costume that Sach wears in the final wrestling match is Klaatu's spacesuit from The Day the Earth Stood Still (1951).
When Sach tells Rhonda Nelson she should be driving a better car, like a Maxwell, he is referring to a car brand that disappeared in 1925, 27 years earlier - when the company was bought out by Chrysler.
Shot in six days.
The 28th of 48 Bowery Boys movies released from 1946 to 1958.