I like my Hotchkis Sport sways, kit P/N 22112. I got them cheap at Maryland Speed. The kit comes with everything you'll need.
The rear bar is adjustable but the front is not.
2016 2SS 6-Speed Manual... Magnetic Ride Control, Dual Mode Exhaust, Sunroof, Adrenaline Red Interior, Mylink W/Navigation
Edelbrock E-Force Supercharger, GM 1LE Sway Bars, BMR Upper/Lower Trailing Arms, BMR Upper Control Arms. BMR Front/Rear Chassis Braces, BMR Tunnel Brace. GM Red knee Pads, GM Black Front Splitter, GM SEMA Concept Grille, GM Dark Taillights, ACS Rockers... Savini Di Forza BM-14 Gloss Black Wheels 9's front, 10's rear.