I have a full Yoshi header and exhaust. Was wondering how much Hp to expect with jetting and headers get me on the F2. I know it will have much better flow than stock.

 

Anywhere from 600-800hp depending on how many stickers you put on the bike as well


I in all honesty don't know. Dyno sheets for the F2's aren't all that frequent online. Involved tuning to make the most of such exhaust systems involves notable dyno tuning, and most people really haven't invested that into these bikes since the internet became popular.

 

Back in the day I was looking up headers and vaguely remember seeing somewhere around a 4-6hp gain. Don't quote me on that, but I know for a fact that it is not a huge gain, especially not worth the cost or worth putting on a street bike that is 20 years old. Unless of course you do some kind of vintage racing...

Obviously that gain would need a lot of tuning to achieve. You can't just pop them on and have your bike run correctly.

 

the wieght loss will be much more notable my full hindle wieghs less than the stock muffler by itself