Flywheel/Flexplate/whatever you want to call it fitted. Bolts are torque-to-yield, so I figured it was worth fitting new ones. Top tip: I also marked each bolt with a sharpie once I'd angle-torqued it so I could keep track and didn't accidentally double-torque one twice or something and end up shearing the bolt off in the crank - doesn't bear thinking about at this point. Another way to do this would be to use a digital torque wrench to measure the torque required to turn the bolt the required