Next, I needed a transmission. In order to make life easier, it made sense to use the same transmission the K20 would use. That way, the mount kits made in the UK would work.
I sourced a 6 speed transmission from an ‘04 Acura RSX Type S for $800. This is basically the same transmission found in the ‘02-05 Euro Civic Type R, but it has a longer final drive gear (4.389FD). Actually, the longer FD gear might be better for the higher torque delivered by the K24 (especially in such a light car).