Rc nitro muffler large scale heli?

Description

This is a used rc nitro muffler for large scale rcs. I believe this is for a nitro helicopter but I am not positive. This can be used on other large scale rcs also. The muffler measures about 8 1/2 inches long, 1 5/8 inches wide, the inlet is 3/4 inch. There are some scratches from use and a couple small dents on one side I show in picture 5. Please look at pictures closely, and ask any questions you may have before purchase. I do not accept returns.