Mild 2 Wild
 

does getting one of these do anything adverse to the vehicle? I know it makes it sound differnt, but I do not want to harm the vehicle in any way. Also, if you have installed one, are you happy with it, and does it fit into the fuse box ? Finally, I note in the instructions (on line) that there is a different method to install with zero battery drain, has anybody done that?

One of what? I see nothing that indicates what device you are talking about. There are dozens of products named Mild to Wild, including, of all things, some sort of pepper-based seasoning for food, and lots for cars.

If you are talking about the exhaust cutout override switch marketed by Mild to Wild, I doubt it would hurt anything, but you can rig the same thing yourself if you know how, that device just saves time particularly if you don't know wiring well. But regardless, it won't hurt the car, just mean you make a lot more noise at lower RPM, and it may also cut your low end torque -- when I do the same thing to my Aston I lose about 10 lbs of end torque below 4000 RPM.

Newbie here...I have this on my 2008. Yes there are options as to how to hook up to avoid battery drain.

It is / does exactly what it says in it's marketing.

well i too haven't tried this process but i also haven't tried to install it but now i would like to install it, so can anybody tell me how to install it, thanks in advance.

Installed on my new 2012 ZR1. Works as advertised. Is simple to use. No impacts observed. Leaving exhaust open sounds good and according to GM provides an additional 6 horsepower