I believe that it had too small diameter so when you accelerated fast there was pressure build up in exhaust pipe and weakest link has failed
No, just kidding.
For me it looks better without that end pipe, but then again I'm antituner/ricer person
If end of your exhaust pipe has been on place without enough support, it could been cracked from place that had hold that weight, for example where pipe goes over rear axle.
I have had little trouble with mine too, but there is nothing that good metal wire can't fix

Volvo 360GL -88 -under restoration-
Volvo 343DL vario -81 -running-

Volvo 240 Diesel -83 -undecided-
Citroen ZX Dturbo -97 -daily-

