Nothing really too classy....for a old fart!
I bought this SLT off my son as he ended "up dating" to an Escallade. (His Seen below)
I pick up some nice Giovanna rims with rubber (Grabber's Ultra High Profiles) 305/40R/22 for a sweet price that I just couldn't turn down.
I put in a set of rear LEDs light which in my mind out class those stock ambers.....Up front the DRL bulbs were change from clear to amber. Wind deflector and side window drip rails were added however, I just have them on the drivers and passengers side only. (didn't like them on the back seat windows.)
The new Projectors make a big differance! Perhaps later...a new billet mesh grill and...have the lower front bumper "paint matched" then rock guarded to match the vehicles colour..
Wheels & Wind deflector added!
Side view! 
New Projector with angle halo's!
Rear LEDs 
View of Lit of course!
Parking lights & halo's! 
Lows
Cluster bulbs changed to green 
My Yuk with son's Escallade!
Thanks for viewing!