15-04-2015, 02:14 PM
nope, stock s16 was a fibre gasket, doing well to last 23 years! the only XU engine that used MLS as standard was the RFS, even the 405 T16 had a Fibre gasket.
need a part number? http://public.servicebox.peugeot.com/ and http://service.citroen.com/ will sort you out.