Keep it white. If it were grey it would look like there's too much goin on. Imo
+1 white
2006 Chevy ECSB 5.3 - New L33 Motor,CAI, Descreened MAF, Nelson 93 tune, Transgo Shift Kit, servos, 3in exhaust, Borla, pacetter LT's, and ORY, Aeroforce Furture: stall, cam, 4.10's