i have a z400 and i want a rev box and people told me that dynatek was the best and i was wondering which one to get the Programmable or the Non-Programmable b/c i prolly wouldnt know how to program one and i dont wanna pay somebody to so what do yall think?

 

well that depends are you looking to get every ounce of power out of it?(programable) or are you just looking for an extra kick?(non-programable) and if you have other mods the programable one will help you get the most out of your set up. but like you stated you have know what your doing first. BTW do you have the stock CDI on there now?

 

it's a very good idea to upgrade your valve springs if you're going to install a cdi that will allow higher RPMs

 

yea i have stock cdi now and i have full yoshimura exhaust, jetted, K&N air filter, and uni air vents and thats it but i dont know how to adjust the valves and i really dont wanna go in to the motor. but i think ill prolly just get tha none programmable