2014 Chevy SS & Pontiac G8 from factory have 6 "chrome" pieces surrounding the side windows.
The most cost effective way to change these 6 pieces to BLACK is to:
A) Buy the 2 replacement black really long curved gutter trims yourself from GM in USA. You don't want to be transporting them very far because due to their length and fragile nature the shipping is expensive and transit damage is common.
GM Part Numbers : 92294363 (left, black) 92294362 (right, black)
EDIT, JULY 10th 2015....GM in North America have stopped stocking and selling the 2x long Black Gutter trims.
The complete boxed set of 4 straights and 2 long curved gutters all in Black are still available shipped by UPS from Australia to your door.
PLUS
B) Buy the 4 replacement black upper door straight trims from Australia.
Total shipped by Airfreight ETA 14 day is US$180
Paypal as normal "goods and services" to Paypal ID = pjsadler@iinet.net.au
4 x new black straight genuine GM straight upper door trims complete with clips.