My exhaust is leaking .  I had this one made by Mike the Pipe and it has lasted very well. This is the middle one on my 3A. The joint to the downpipe was leaving a deposit and once I was under the car I could see a number of smaller leaks at each end of the  middle box. Last time I replaced this the company used the wrong size pipe and it has never been right since. I have had adapters made and welding repairs but it now seems to be time for a new box. My old Moss catalogue gives HRSU331 front s