DTH THY-542Y-S-C Tri-Y Header wConnector Pipes wo O2 Sensor-... Vehicle Type: Car Fitment: 1981-1987/Toyota/4Runner/2WD/4WD; Exit: Driver; Primary/Collector: 1.5in, 2.25in; No O2 Sensor, Vertical Air Injection; Manual Trans Only; Under CARB Connector/Y-Pipe Assembly Must Be Used On Cars Originally w/Catalytic Convertor; Will Not Fit w/Steering Column Shift/20/22R-RE::CARB EO#: D-540-5^^1981-1987/Toyota/Pickup/2WD/ 4WD; Exit: Driver; Primary/Collector: 1.5in, 2.25in; No O2 Sensor, Vertical Air Injection; Manual Trans Only; Under CARB Connector/Y-Pipe Assembly Must Be Used On Cars Originally w/Catalytic Convertor; Will Not Fit w/Steering Column Shift/20/22R-RE::CARB EO#: D-540-5