Hello.
I am new to ecu management modification and feel this site can aid in teaching what I am in search of.
I would like to learn what ecu management tool best suits my car for modifying the existing ecu map.

I drive a 2008 Mercedes Benz C63 AMG.

I am currently tuned already, but am I am looking to learn what that tune did to my ecu and if I would like to change that map, how to do so.