does anyone have this on there z400 or know anyone that has it? Does it work and is it work 300+ dollars?

 

I have it and it was one of the best mods I've done. No more banging the rev limiter prematurely and a GOOD power increase as well. Well worth the $$$ if you ask me.

 

where do you find them at and whats the cost and
are they easy to use?

 

Wow I can't remember where I bought it from, I'll look it up later, but its super easy to hook up, just plugs into the old CDI, and cost is around $300.

 

are they easy to use? I have the big gun limiter on it now and it didnt make a difference the way it ran

 

Super easy to use. There are literally 2 switches that come off a little box on some wiring. The switches can either be up, or they can be down. Lets just say timing Curve 2 is first switch up, second switch down. All you have to do is first one up second one down!...It evn says on the little black box what curve is what switch positions! Trust me I could train a monkey to work a Dyna...