Rev/CDI box

[tbrackman84]

i was looking at some stuff and wondering if these things are worthwhile, lol? anyone have any opinions on them?

[aDviSol2y]

opinions are like @$$ holes, everyone has one. Most people are going to tell you they are not worth it because the 400 stops producing power at 9000 rpm, yada, yada, yada. If you have a stock bike, you have no need for one. If you have engine mods, ie a kit, cam, etc. The bike is going to produce power beyond 9000 rpm. With my mods, without the cdi I hit me rev limiter 1-3 gear every time. With the cdi, that gives me 1000 more rpm, the only time I have hit the rev limiter is 3rd gear, at the dunes drag racing.