on the pipe on my kodiak muffler theres 3 screws that hold in the core (which is basicly just the spark arrestor)
i took those screws out and took out that core and it is LOUD!!! i want to get a flapper to put on there to keep water out. From what i know, it cant hurt anything its just the spark arrestor and turndown. its just the shell without anything to muffle the sound.. do you think it can hurt anything as long as i keep water out of there??