It came off my 5G, so will mount up fine on any 5G. Where it joins, it might need welded on as it looks like the box has been welded onto the old exit pipe from my Powerflow system. Bore size where it joins onto the centre section is 2". The tip is a slash cut and about 4 and a 1/4 inch roughly. The weld where the pipe joins onto the backbox is a bit rough and ready, but its solid enough and dosn't leak.
When it was on my car, the backbox sat a bit squint, kind of pointed in towards the middle of the bumper, rather than coming out straight. A cable tie on the right hand side mount/rubber pulled it in line as it wasn't drastically squint, but did annoy me. In most cases if you need to weld the pipe onto your centre section, you can easily adjust how it sits before you weld it or what not.
Some pics.....
Price, £30 you pick it up, or £35 delivered to your front door.
