WRXLink (04) - #WRX104+ The Link G4+ WRXLink (04) WRX104+ PlugIn fits the Subaru WRX & STI V10 04-06. The ECU PCB fits discretely inside the original factory enclosure.
WRXLink (07) - #WRX107+ The Link G4+ WRXLink (07) WRX107+ PlugIn fits the Subaru WRX & STI V10 06-07. The ECU PCB fits discretely inside the original factory enclosure.