Hi Paul,
Cam chest upgrade is how MMC referred to the new cam belt, pulleys and tensioners (that can't work loose) - my car also needed new cams (the originals were worn, which resulted in the timing slipping).
They no longer fit the ventilated front case - spacer washers is deemed to be enough.
I do intend to add my own additional ventilation (as per the new fit) this winter.
Hope this helps?
Thanks
Andrew
