I believe I only saw this diffuser for sale here once... Might be better of getting it from one of the sponsors. Good luck.
2013 Audi //RS5 Phantom Black Current
2009 e92 ///M3 Jerez Black<~~Sold
2009 Audi //S5 Phantom Black<~~Sold
2002 e46 ///M3 Carbon Black <~~Sold
2007 Audi //RS4 Dolphin Gray<~~Sold