I'm trying to find a new slip on exhaust for my bike, and it's extremely hard to find something for the F1 for a reasonable price ($100 range). I see new slip-ons going on ebay cheap for F2/F3 models, and there are some for the F1 for $200.00. Are they interchangeable?

Is that the price I'm gonna pay to put a new muffler on my bike considering it's older?

 

I don't know if the F2/F3 exhausts are compatable, but hang in there, ebay has some awesome finds you just have to be ready to grab them when they come up.
check this post:
https://cbrforum.com/m_218219/tm.htm
Worked for me

 

you can use a f2/f3 slip-on, but you will need to find or get a midpipe to attach between the collector outlet under the bike to the slip-on for it to mount up and work.

 

Thanks for the info 313 (I'm originally from Macomb/Clinton Twp, I kept getting screwed, 810 then 586, make up your minds!)