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Progressive cut control
Tacho Control
This kit converts the EJ20
The Aluminati pitch stop prevents the transmission from pitching back and fourth during hard acceleration
Link PlugIn G4X ECU 11-14 WRX and 15-21 STI WRXLink WRX11X V11 Plug and Play Oil Pan and Pickups Progressive cut controlNote: All Link ECUS are Shipped Locked for your security. Please call or email us for the unlock code. Not CARB Legal Not for sale or use in California or Other CARB States G4X PlugIn ECUs offer the latest in engine management technology, designed to easily maximize the potential from your car. This ECU fits inside the factory OEM enclosure. Installation is a breeze, with no alteration of the factory wiring loom required for the models listed below.