2nd Driven Gear TY856 6MT Ratio 2.375 Intake We start with a new

We start with a new factory block case and crankshaft that have been ultrasonically cleaned

1 - ST41322ZR000 (Rear Diff Front Support RH Bushing)

Multi-layered steel (MLS) exhaust gasket for the connection between the exhaust manifold and turbocharger

2nd driven gear for 6-speed manual transmissions with trans ID codes starting with "TY856"

2nd Driven Gear TY856 6MT Ratio 2.375 Intake We start with a new2nd driven gear for 6 speed manual transmissions with trans ID codes starting with "TY856". This is the shorter ratio 2nd gear used in USDM STI MY04 06 and all JDM STI. Optional REM ISF (superfinishing) treatment. ISF is a precisely controlled treatment that reduces surface roughness left from the machining processes thereby improving reliability, reducing friction, and all but eliminating break in requirements and the resulting swarf. Ideally, we