Turbo Clamp

Greetings.
I'm still trying to update the old clamp that joins the turbo to the downpipe.
I would like to upgrade it to a modern steel version with quick coupling but I have not had success, so far I have bought 3 and all of them are wrong, always slightly larger,
I sent the size of the downpipe to the seller, who tells me that he does not have the fit for this.
but I have already seen other coupes with this update.
Could someone tell me which one is the exact one?
Thank you.

It's a 2.25 in V band off the OE turbos so most clamps are either too small or too large as you've found already.

I've found a supplier who offers the flanges and clamp to match the OE size which is fine for me as I'm pricing downpipes but the clamp isn't seperate.

https://www.profusionexhausts.com/2...teel-v-band-clamp-kit-m-f-quick-release/

then a 57mm one will be the right one,
thanks Joe

like this?

https://www.hild-tuning.de/v-band-schelle-57-mm-komplett-set-extra.html

Yes they look exactly the same other than the gold locking nut.