Originally Posted by
Arronb
But as Mark says above the STI lip has the same part number for both MY08 and MY11 so if the OE lip fits both models there is no reason this will not.
At the time of importing my spoiler the STi Lip spoiler for 2011 was Part number ST96020ZR180 and STi lip spoiler for 08-10 Part Number ST96020ZR040
However having looked at the revised STi catalogue and Sports part pages they now show a part number for the 2011 as SG517FG010 which suggests they are still different but changed to a mainstream part.
http://www.subaru.jp/accessory/wrx/impreza_wrx_acc.pdf