Which Air Box please?

[Stevomtb1]

Hi. We are having a right Mare with getting this thing into out 5GTT.
Apparently "all" of the parts were not included with the shell🙄.
Which Air Box do we need to buy please? The Renault one, a Volvo one or an aftermarket one.
Thanks👍

[Matt Cole]

What engine is it Steve? If C1J, then I would fit the standard airbox with heater flap.