AntennaMastsRus - AM/FM ROOF ANTENNA MAST is Compatible with Subaru Impreza (2008-2019) Fits: 2008-2018 Subaru Impreza Easy Screw-On Installation with No Modification, Cutting, or Drilling Ships from Wisconsin!! 100% Satisfaction Guarantee, Period! Let us Save YOU $$ Over your Local Dealer! Size: Length: 7", Base Width: 0.55"