Roofless Exige

Can anyone tell me whether the air scoops on the side of an S2 Exige will fit my 111R?

Funnily enough, I asked a Lotus engineer whether you do that swap the other way (111R style finned intake covers on an Exige S2) he said no, the clam is a completely different design (albeit very similar looking) and the parts would not be interchangeable.
You never know, it might fit with a bit of fettling. You’ll need to find a very friendly S2 owner or dealer who’ll let you borrow an air scoop and see if it comes close.