I am looking into buying an apexi vtec controller. Is it worth it? Can it damage anything in anyway? Can I install it myself? Is it necessary to dyno tune? Just some question before I spend unecessary money.

 

what are your current mods? it wont help much unless you have cams or some other power adder. you could install it yourself, depends on how confident you think you are in following directions. and yes, to recieve full benefits, you should have it dyno tuned.