HKS Front Pipe "Downpipe" EVO X EU
The Downpipe will fit on OEM Turbo & Cat
No need for an O2 sim, but the car will more than likely need to remapped due to the extra flow of the front pipe.

Additional:
HKS P/N 31013-DM001EU HKS Cat Back Exhaust for EVO X EU with TÜV