hi there,
yes you can do a temp fix on flex pipes and it involves drinking beer.
get yourself 1 or 2 steel beer cans, i can tell you that Kronenbourg 1664 comes in steel cans, drink contents of beer can, don't waste it.
Cut both ends of the can off (be careful sharp edges) use the steel sheet as a band aid. get exhaust gasket paste cover the area of the leak lots of it, put the beer can steel over it and use 2 jubalee clips on either end of the steel band aid to clamp it in place. this will work as temp fix i have done it loads of times.
but i have to say, i have heard nothing but good reviews of fassi1 @
fassi1 downpipes, and i will be looking to by some in the future. hopefully not to long.