Synchrotech GSR Turbo Pro Series 1-4 Gear Set O2 Sensors Removable PS drive is 4%

Removable PS drive is 4% OD

(ONLY fits original tumblers with FIC top feed fuel rail conversion RL STI)

Positive locking connectors

IS176-2150H - Subaru STI '04-'06 & Legacy GT '05-'06 Fuel Injector Clinic Injector Set: 4x2150cc Saturated / High Impedance Injectors

Synchrotech GSR Turbo Pro Series 1-4 Gear Set O2 Sensors Removable PS drive is 4%These gears are direct fitment for the 94 01 GSR. They are designed with a longer 1st for a better launch and 2 4 ratios that are perfect for a Turbo B series. The OEM GSR main shaft and 5th gears can be reused or the 5th gears can be replaced with a MFactory shaft brace. The 3rd and 4th gears are designed with a replaceable synchro gear cone. Even when you damage the engagement teeth from a mis shift, you can replace this part without needing a whole