[bluecivic101]

I believe (but not sure!) that 96-00 used a seperate brain (TCU) and not quite compatible with older models.

my friend once used a ZC DOHC tranny on his 99-00 d15b non vtec and it worked perfectly; but the "slope" option was no longer available (bleh neways) and the ratios were a wee bit quicker! car acelerated like a bizzatch