Any top tips on how to remove these??

[cmcmill01]

I have finally got new O2 sensors and now wondering how to replace them as it looks when I got the exhaust changed they welded them in!!!
Any ideas??

 

[thelal]

nasty

 

[Gary820]

Angle grinder?

 

[David]

Looks like they broke the studs off at some point, all you can do it buy a new exhaust section or cut that one out and weld a new on in

 

[cmcmill01]

Thanks for the suggestions, will have to do some digging into a new exhaust piece I think!!

 

[AdventureWagon]

Hacksaw around that one until you can pull it off and then weld on a new one, or drill/tap the resultant hole to size? Or even more hacky, leave that one and drill a new hole nearby for your one.