Here, you are looking at the Subaru OEM Vortex Generator. This generator has been designed to fit vehicles equipped with Starlink for improved aerodynamics. Ultimately, vortex generators will channel the air to hit the top of the decklid on the factory spoiler for improved downforce.
Available for separate purchase for those of you who need a direct replacement
Genuine Subaru OEM component
Fits vehicles equipped with Starlink
FITMENT NOTE: 2017+ WRX and STI Models will have 2 different antenna options depending on entertainment package (Starlink). This will fit the LARGER, Starlink-equipped, 9.125" long antenna. The SMALLER 8.5" antenna will require the earlier model vortex generator.