Hi - Can you tell me how many parts the Supereg consists of?

Obviously the muffler is a separate part but are the two headers one assembly with the collector or are they:

2 separate parts : 2 headers "in one" assembly + collector?

3 separate parts : 2 separate headers + collector ?

1 part : collector and headers all one assembly

Also, what is the length of the muffler?

And if the headers/collector is one assembly what is the effective length of the whole thing?

Am looking to see what size container I will need to transport them in on the way to the dyno

Many thanks