Originally Posted by Frank A
correct, however the USDM spec B gears will not work in the 07-08 USDM sti tranny, or probably the EDM STI tranny either for that matter.
I was wondering about that, too. How do you know?
Rallispec told me that they can convert 07+ STI tranny to SpecB ratios by using 5-6th gears from JDM STI Forester tranny.