Turbo remove for new exhaust 2012

[Jackharley]

Brought a new exhaust stripped the old one back to the value that connects the exhaust to the turbo (I think it’s called a dump pipe)but I have managed to badly strip 2/3 nuts and I’ve tryed it all (crc, blow torch to heat up nut then vice grips, filing the nut) but I can’t get them off so I want to know how to take the turbo off. Thanks