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Forester STI (TY856 MT)
The EJ studs are undercut to more effectively compensate for head gasket compression
13270AA040 (RH Gasket)
JDM STI MY01-02 (Original Equipment)
transfer driven gear rear bearing race and shim
RalliSpec Type STI 5MT Gear Set MY99-07 22056AA270 Forester STI (TY856 MT)Our Type STI gearset was originally developed as an economical upgrade for the weak MY02 WRX transmission. Based on the JDM GC8 STI gears which were designed to support higher torque levels than the USDM WRX and offered improved ratios. Later USDM models eventually incorporated these gears into the transmission including the MY05 09 Legacy GT and MY08 14 WRX which have similar variations of these gears and the same ratios. All gears are REM ISF
