cutting 38mm in HAFE exhaust manifold

[foxracing4500]

I bought a HAFE exhaust manifold a while back but I never chose the option for them to cut the hole for the external wastegate. Looking to the future of now I have a tial wastegate but I need that hole drilled, so the question,

what will I need to cut that or should I tear it all down and take it to a garage that will charge $20+

pic for reference,

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[My1GLaser]

If I was gonna do it myself then I would drill a hole big enough to get a carbide burr bit in there and port it out to the correct size. But, if the turbo is mounted then you will get a shit ton of metal in the turbine housing. Probably not a good idea, so I would at least take the turbo off there.

 

[93_tsi_fwd]

This is what i used to drill out the hole on my manifold. There should be a small dot in the middle of the flange on where to put the drill.

SourcingMap 38mm Hole Saw Tool Alloy Cutting Twist Drill Bit Set

 

[foxracing4500]

I will have to try that and yes i am drilling it disconnected from the turbo