I have the OEM exhaust system and, I can not take the discoloration of the headers, catalyst converter (the whole) system, does any of the systems on the market has TI on the headers/pipes, I do not care too much about the canister, since almost all of them are either CF or TI, but, it stops in there, a solution will be ceramic coating, but, at 2k for a 2-1, should not be a nicer looking system, that still looks better after 2-3 months...