Brother, I got mine removed too because it was broken. The car doesn't sound nice after the removal and I think the fuel economy has also gone down considerably because the O2 sensors are being fed wrong information.
Tried to look for it in Saddar and Chah Sultan, the only 2-3 people who have it are asking 10k+ for it.
P.S The tailpipe is not as clean as it used to be, tends to become blackish. It used to be rusty while the CAT was on.