I was going to get a new universal cat an original one would be too costly.
Idles fine, but on petrol there is a bit of hesitation at 3k rpm like there is not enough fuel, ordered new bosch AFH injectors these old one's probably need cleaning and filter changes who knows not much point refurbishing them when the new one's are cheap. And the garage put the AHW throttle body on in because it was brand new. So now when i change the injectors i will swap that out too and probably fit a new cold air intake and get rid of the tube that goes to the exhaust.
Otherwise on LPG runs fine so probably the injectors or the o2 sensor is crapped out.
Anyway here's a pic of it in the bay.