My stepbrother left a Honda transmission in our shed. I looked and looked and can't find what it is! I posted info on another site and was told it was a GSR, but was told by a reputable Honda tuner from the area that it's probably a D series tranny. I have a b16 in my hatch, and I need a new tranny. Can anyone tell me what the tranny REALLY is? The number code is S20-2127634 and there's another sticker that reads C5F P20. I'd like to know what it is and if it'll bolt to the b16. Thanks.