I would like to start by saying I have an automatic. I'm not exactly sure what everyone's definition of "launching" is but mine is when you hold the break to the floor and slowly give it gas until around 2,000RPM and then let of the brake and floor the gas (at the same time). I was wondering if doing this hurts my car? I assume it does and have looked around for answers but could not find any. Also if I get launch control with a tune, what exactly will this do?