I'd order one. For the cost of them, it's well worth replacing the gasket (both the black one and the orange little one), although as Budgie said - they may be fine and not need replacing.
what orange one?! Not really taken the spanners to the Clio and this will be the first time I've had the inlet off... Thought there was just the one!
Black one is between the upper and lower inlet. Then there's an orange one between the upper inlet and the cam cover breather.