I searched it all i found was fs: or wtb: threads on it. Anyways what is it? it tunes your evo? what would i need to get and how so i can use it.I need all info on it.

 

Generally it seems people use it to tune their Evo via EcuFlash and a laptop. Go to EcuFlash.com or do a google search for EcuFlash, or just go to the EcuFlash section of the forums and they can answer all your questions.