Hey Bimmer, I think the gunmetal will look sweet on your siverstone but either way I think the silver will look nice too. To tell you the truth I would go with silver.
P.S it's the NF210 that I have...hey I see u from Miami, the Z club I belong to here in Orlando is planning to make a trip to South Beach on the 17th of this month u should meet up with us..oh yeah thanks for the compliment. Good luck with the rims.