""Both front and rear exhaust flanges need to come loose so Pipes come out together to get at the cam-plate cover properly...
Bubbie......Are you saying that the pipes need to come off from both cylinder heads?
Yes I am sure that is what Bubbie is saying
rear one can be a wee bit fiddly to get tools on to the nuts but by using 3/8" square drive with wobble extensions should get in there ok
Best practise on reassembly is to is to put some high temp anti seize on the threads and double nut on each one
Brian