If i remember correctly somebody on here told me that i would have to change my valve springs if i got the vortex CDI. If so why and how much does it cost. Thanks

-Darren

 

well, i saw this cdi box on ebay, and want to know peoples opinions on it.

 

It probably depends on how many rpms it increases. I bought mine from Nicholas racing and he told me that I would not need new springs. I think his box increases 1000 rpm. He said not to be bouncing off of the limiter though.