Basically the entire exhaust from the turbo to the tailpipe is new. The proprietary design of the flange off the turbo to the downpipe is specifically engineered to "scavenge" the exhaust gases, creating an increased flow which lends to lowering EGT's, as well as allowing the temp to drop quickly back to normal levels after driving the car hard.
Even after an extended romp at WOT to 200+kh/120+mph (on a closed road under controlled conditions, of course!
) I never saw temps above 1200* F and these dropped quickly once I was off the power and driving normally.