I couldn't rightly say I'd put on a smaller upper pulley if I got one, but I would probably tune it. Having read that article on the DCT, I'm sort of wondering if the PCM controls the transmission of if there is a separate module for the transmission. Surely they would be somehow connected, but it's something I have some interest in learning more about. I have to think Tremec has other plans for this gearbox. If it bolts to a coyote, it will bolt to any Ford mod motor.