[Blacked out 2013]

Thanks. I believe I already have a diffuser bc it should have came with my car as I have the M sport package already. I know I have a diffuser bc it comes on the M sport rear bumper unless I am confused lol... It should be the grey area right above my exhaust tips and below the reflectors....

I am very seriously considering the front M performance splitter and leaning towards it. My wife however, says she doesn't really like it but its up to me lol...

As far as lowering it, not considering it at this time as I have the M sport suspension with the 19" so the gap is very small as is.