i am about to swap my N/A built d16z6 in my 1991 ef hatch and i am going to use my stock ef tranny well a si one but just wondering if i need to use the d15 flywheel or the d16 one? also are the clutches the same? i could just try them both out but i just thought i would ask THANKS

 

90 and up all use the same flywheel and the same size clutch

 

i second that statement.