Here is a picture of the M3's DCT transmission. I have included a picture of the transmissions control unit so you can see why we have to flash the DCT software local or in person. In the SMG equipped cars the transmissions ECU is located in a spot that can be removed with the engine ecu and sent to us. On the new DCT transmission the control unit is located on the actual transmission and can only be accessed thru the OBD port with a special interface.
The good news is our Stage 2 engine software with corrections for power delivery during DCT shifting has done really well with our 600 HP stage 2 kit so we will have this as an option for customers who want to order VT2-600 for their DCT equipped cars. Over 600 HP we still recommend having the dedicated stage 2 DCT software as the car performs much better with it.
