Thinking a high torque automatic (triggered by lots of C5 tuning time) would be nice. So want the C5 (A6, S6, Avant) wide body with strong 4.2 ZF 5HP24 (A???) Tranny. Beefed up TC. And swap a 2.7T with my high torque (30 psi at 3.6k rpm) TM6 Kraftwerk Turbo on. A lot of swapping required? Have 2.7t harness.
What else is needed from the 2.7t donor car?

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