Yoshi vs Stock

[davidsargee_imp]

Just watched them, CIP57. Yoshi definitely quicker, I timed them for the fun of it and got the same as you, 8.0 and 9.1. Don't need a timer to see the improvement with the Yoshi, you got to 100mph in a flash, in fact I was surprised just how quick it happened.

I can't wait to see a quarter mile time without the speed limiter, this bike should run low 11's without breaking a sweat. With the Yoshi exhaust and improvements to the airbox/filter for better breathing your bike is potentially a 10 second CB1100. Cool.

The Yoshi has a great throaty sound to it, very slight increase in DB.
When the bike is tuned correctly i can see it getting into the 10.90's with a professional mounted.

The Yoshi and Staintune slip ons are my favorite, they sound good but not loud.

10.90 is a very reasonable goal, the magazine ran 11.7 and was undoubtedly hitting the speed limiter with terminal speed of 110 and some change. I wonder how long the bike was topped out on that run. 10.9 would be a .8 second improvement, that's more than it sounds like, but definitely achievable. The ECU flash gave you some improvement beyond disabling the speed and rev limiters, (if I am reading y'alls posts right). With the pipe, and better breathing air box, you are probably very close, if not there.
You don't have to be a pure professional to make a good quarter mile run on this bike, I made some hole shots one day just to see how it feels. The bike will launch hard if you slip the clutch just right, piece of cake. The trick is to, for lack of a better term, go easy, slip the clutch just enough to get rolling before you fully disengage. Wasn't watching the RPMs but the bike seems to like quick shifting from 1st to 2nd, and not to redline in 2nd before shifting to 3rd. Don't want to lug it, but the bike is torquey enough to shift quickly to third and then just let it rip. (Just like your vids, )