For those of you who like my matte black exhaust you should know that all I did was spray some rattle-can, high-temp paint on the stock exhaust. It's held up beautifully for nearly 2 years.
'08 E90 M3 - Alpine White - Sold
'13 E92 M3 - Silverstone II - Sold
'04 E46 M3 - Jet Black - BBS E88, KW Clubsports, Brembo BBK, SuperSprint Exhaust