whilst repairing my cat a month or so back i must have damaged my downpipe and it has now started to "blow", audi want £200 for one, or i can get a pattern part fitted for £150 (which will probably only last a year or two, cheap tat) or get the flexible part cut out (which is where it is blowing from) and get a new bit welded in for £80 but that does'nt carry a warranty. so i ordered a jetex cat-back (i dont have milltek money) off the internet and when that came i found that they do not supply the downpipe as part of their cat-back system? so i am returning it. so i am asking other peoples suggestions on what to do or has anybody replaced their system and got this part for sale? HELP..what should i do????????