Hmmm I think mine are that color. Pretty sure anyway. That tag says Silver though not charcoal.
2011 L99 W/ Kooks Long Tubes, Ported TB, Roto-Fab CAI, Apex Catch can, Stainless Works 3" ZL-1 Catback, Overdriven Maggie @10 Pounds boost putting down 501/535 on a conservative tune. Oh and Forgestar 20's