looks like a scorpion exhaust, or a copy of it, don't know the seller so can't vouch for quality, if i were you i would do 1 of 2 things.
1. replace current system with new shiny one
2. get it repaired, a good place should be able to cut out the old pipe and weld in a new bit.
if you go the shiny new route, then speak to CS as he does several cost effective replacements which are known to be good quality
either the scorpion, K1 or K2,
me personally if you just want a replacement and easy fit unit then the K2 is possibly best.
if you want nuts out screamer of an exhaust the K1
scorpion is good, but have heard several fitment issues, not impossible to fit, but occasionally need some manhandling