[ITSv40]

It is a few years since I did mine so memory fades a bit. I only undid the lower unions from the joiner to remove the rear pipes. I think? I found it easier to reach down from above to undo and then fed the pipe out from underneath. Same with refitting- feed pipe into position from underneath and then locate and tighten union from above. I also made up some blanking plugs by filling a couple of union nuts with solder to seal the front part of the system so that air did not get in the abs module. I managed to get the old pipes out in one piece and bent the new Kunifer pipes to suit before fitting to the car. They just then needed a little tweeking to get them to look neat and tidy.