Looks like I will be in need of something like this to get the F on the road for the spring. I contacted them directly and asked them if the 4-1 system for the 78K would fit. They said they don't have a mounting bracket available at this time for the F model, but we're pretty sure if "someone" was to make one up, it would probably fit. So has anyone fitted the K model system to the F? And if so which silencer did you use/like?