Irn

I'm a newbie but what does the superchip do? I've googled it but not had much luck understanding other than "IT GIVES MOAR POWAH". Is this something a non-techie can install easily? The most I've done so far is put on my own running boards. Can it help with my mpg? I have a 2007 JKU 4 door on 32" and 2-3" lift. I get about 13-15 mpg which I know I should never complain about since I knew it would be bad coming in.

Thanks.

Mookie

recover kit, bumper and flashpaq all gone.