Thoughts on exhaust repair/restoration

[Easy-X]

Not sure what to do to fix this:

https://i.imgur.com/dziQ5jl.jpg

The marked bits are meant to attach to a bracket which then bolts to the frame. There were threads at some point but only remnants now

Not sure the posts are thick enough to drill out and tap a thread. Weld on a bolt maybe? I could just weld the bracket onto the exhaust but that seems a bit... sacrificial.
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Royal Enfield Continental GT 535, Husqvarna Vitpilen 401, Yamaha XSR700, Honda Rebel, Yamaha DT175, Suzuki SV650 (loan) Fazer 600, Keeway Superlight 125, 50cc turd scooter

[ThatDippyTwat]

If you can weld, then add some metal back into the posts, drill and tap to original size.
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'98 VFR800 (touring) - '12 VFR800 Crosrunner (Commuting) - '01 KDX220 (Big Green Antisocial Machine)

[Easy-X]

I've been looking for an excuse to get into welding - I'm good at soldering and brazing - how hard can it be So far this is the only thing I have that might need welding though.

I'm wondering whether I'd be better off just adapting an aftermarket exhaust - something with baffles that can be got at with screwdriver and not an angle-grinder like this old thing.
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Royal Enfield Continental GT 535, Husqvarna Vitpilen 401, Yamaha XSR700, Honda Rebel, Yamaha DT175, Suzuki SV650 (loan) Fazer 600, Keeway Superlight 125, 50cc turd scooter

[Pete.]

Cut off flush, drill, tap, fit studs. Half hour's work.
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a.k.a 'Geri'

132.9mph off and walked away. Gear is good, gear is good, gear is very very good

[steve the grease]

Pete saved me from typing, all I can add is 'centrepunch' inbetween 'cut off flat' and 'drill'.

[Easy-X]

[Pete.]

[Sister Sledge]

Or:- Do you have access to a lathe? Make a sleeve that slides over and give one end a thread / make the sleeve accept a piece of thread from a bolt. Held on with a grub screw or whatever.

Obviously better to weld. You need to get to some welding lessons because this doesn't necessarily need an expensive welding machine to fix it. A cheapo low current machine will do it. A small inverter unit for example. (they have electronics inside if you want to drool over something)
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CCM 404 DS

[Riejufixing]

If you can braze, you could cut off a few mm and braze on a bolt. File the joining surfaces flat first.

[Easy-X]

Thanks guys. I'll try the drilling tips first and move on to welding as Plan B. Plan C is the slip over collar
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Royal Enfield Continental GT 535, Husqvarna Vitpilen 401, Yamaha XSR700, Honda Rebel, Yamaha DT175, Suzuki SV650 (loan) Fazer 600, Keeway Superlight 125, 50cc turd scooter