This is what I have installed, but the 3.2 versions. I have a pic of the old ones that I need to download from my phone. They have no cat.
http://www.cargraphic.co.uk/index.php?/s,6,7,18,714,2436/&start=12
The second ones you posted look good, but be aware that most of the bolts snapped and I had to helicoil them.
Will post photo later of the old one.
I am trying to choose a silencer that is not too noisy
