Anyone seen this before?

[slowcoach3]

Ran my S3 for a while the other day and took it for a wee blast, everything seemed to go OK. Noticed the next time I looked at it that the tailpipes are full of a white powdery substance. Has anyone seen this before?
The car doesn't appear to be loosing any coolant, certainly not noticeable anyway and I don't believe it to be running massively lean....
I would upload a photo but I can't for some reason, it does look like you imagine though, like a coke headache nostrils! Cheers

 

[badger5]

coke head S3 - thats a new one

 

[slowcoach3]

Bill I think an S3 that hammers money leaving you with nothing but a sore head and an empty wallet is pretty standard isn't it?
Any way the **** that fitted the exhaust went seriously overboard with the exhaust paste and when the residue mixed with condensation then got hot it left a rather dubious look on the tailpipes, emergency over!