Frank@Work

What part of these gaskets is re-usable?

Perhaps they are re-usable, but not as a gasket for the headers to the x-over!

Did I do something wrong?
Am I the first to whom this happens?

They where on the car for about 6000 miles.

shiners780

I have reused one of those twice at the turbo downpipe to exhaust junction with no problems.

Did you maybe have to pry that off one of the surfaces?

Frank@Work

The copper gasket at the turbo downpipe is in perfect condition.

I did not have to pry them of. It seems like they where mounted under some kind of tension.

hosrom_951

If those are the LR copper gaskets for the headers to x-over, then they worked fine for me for 1 year and about 12,000kms.

When i got some good used headers locally, they did not fit, and i use the factory crush rings (whiched did the job), thus indicated to me that if anyone has a problem with a leaky exhaust and use those gaskets as a "fix", that means there is something wrong with you're exhaust.

Using them to be "re-usable" is a different story, and i have one for the turbo down-pipe to test pipe and also lasted (and still on the car), but that one if from Fabspeed not LR.

Maybe you're EGT's are a bit high? since we know copper expands faster than aluminum or steel and caused what you experienced?

Frank@Work

You might be right on the high EGT's. I was seeing 950 celcius. The exhaust headers are wrapped so the temps at the connection to the x-over will be higher then unwrapped.