[Fishcat37]

im no d series expert...but i would think that the best trans for that motor would be the 6G 96-00 EX trans. that is the trans that that motor was originally bolted to. The d16y8 motor revs higher than the d16a6, so im assuming that the gearing in the EX trans would be better for that motor. honda must've known what they were doin when they made the trans for the EX motor. the si trans (L3 i think) has good gearing-tho (for that motor). i myself would probably just keep the si trans(assuming that there's nothing wrong with it..and because im a poor ass)....because then i'd know that my axels would for sure work with it. not sure if your si axels would work with the tranny for the Y8 (wish i knew the code) tho.