I have a 2000 si with a 05 rsx-s tranny and it fits just fine with the hasport mounts. The only problem I have is that the 05 tranny does not use a mechanical speed sensor like the 02-04 type s. It appears to use a magnetic speed sensor, when we pulled it out there was not a gear on the end of it, just a metal casing that was magnetized. Any way all 3 tranny holes match the hasport kit on the 05 tranny. Good luck finding one though, took me months.boostedGSR-Si said: