6th Drive Gear TY856 6MT Ratio 0.707 EJ20G The result is improved stability

The result is improved stability and balance during high-speed operation

STI Type RA MY18

Pinned Mains: No

WRX FA20F MY15-21

6th Drive Gear TY856 6MT Ratio 0.707 EJ20G The result is improved stability6th drive gear for 6 speed manual transmissions with trans ID codes starting with "TY856". This is for long (tall) ratio applications including our RST F145Kit (2nd 6th long ratio) gear set. 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