Well first off, I autocross, so its got to be a manual,,lol
The ZF 8 speed is Big, Heavy, Expensive and Complicated. Pretty much everything the little T5 isn't. The 8 Speed is at least ~200lb not counting fluid cooler and cooler lines. It has a very large diameter with almost no "tail shaft" so there would need to be major surgery to the floor pan to fit. Its electronics gets even more complicated. I have no idea what it may or may not need on the CAN bus before it would even attempt to shift. Would the trans insist on all 4 wheel sensors? ABS module? Shift indicator? Shift lever? There's just too many unknowns.
