http://cgi.ebay.com/ebaymotors/03-06...QQcmdZViewItem

...I found a generic cat back on ebay, it's not my item but I'm just trying to help out.
I can't guarantee the fitment and the quality of the product since I've never dealt with it before. I tried browsing his feedback history to see if somebody has purchased one from him, I was gonna ask how's the fitment/performance but i couldn't find any.
He will ship internationally for $200, so you're looking at $310.98 (roughly Php15000)