With a TA series it's going to be a straight up swap.
Everything will be the same. Bend he outer ears down just a hair on the header so they're slightly below flush. Smear a thing layer of silicone of both faces and allow it to 'skin over' along with the turbo drain gasket. Start the bolts and bottom them out for a while... Give it a few then lock them down and torque everything to spec.
Bonus point if you let the seals cure overnight before putting a load on them.