extractor problem

[Nally]

hi to all bro out there,
I'm having problem with my 4g63t(eclipse second gen) engine
my extractor overheat means it's turn red when my boost up to 0.2 - 0.6
exhaust piping is 2.5inch and fuel pump already change to walbro with fuel regulator

 

[DanzEterna]

u could either ceramic coat it or just heat wrapped it....