Do these flangy 😆 bits come off?!

[Donut 77]

Where each pipe meets the head? I want to clean them up and one of them is quite rusty.

[MacV2]

Where each pipe meets the head? I want to clean them up and one of them is quite rusty.

No they are not removable. Unless you can weld stainless, youd have to cut the exhaust up to remove them.

There is an alternative avalible by way of a split flange...

viewtopic.php?t=45008

[Donut 77]

They’re a good idea!

[purgeraptor]

I bought and fitted a set from Mac...top quality!

Only hard bits are:
1) Undoing the old crusty nuts on the studs without shearing them off...use lots of Plusgas or Shock Unlock spray days in advance, then heat if needed.
2) Cutting the old single piece clamps off the downpipes. I slid them down the pipes to gain access, jammed them in place with piece of wood, then used an angle grinder with cutting disk, with thick cardboard added behind at the last moment to protect the pipe finish when the cutter broke through.

[tony.mon]

The larger diameter section is only held on with spot welds at the inlet end, so you could grind those off and remove the clamp, then re weld, as an option.
Personally, I usually gring the flange off, as you have.

[Donut 77]

I bought and fitted a set from Mac...top quality!…

very tidy looking. I wish mine looked like that

[MacV2]

I bought and fitted a set from Mac...top quality!…

very tidy looking. I wish mine looked like that

They can. I posted a link for you already but hear it is again...

viewtopic.php?p=495108#p495108