It won't fit an MC18 I'm afraid - you are right, the gap in the frame is narrower.
I do however have an ultra rare HRC airbox for an MC16 (which will also fit an MC18) that a mould could be taken off at some point, if (a) there is enough interest, and (b) I can bring myself to let it out of my posession. The MC16 box even comes with ram air style tubes out the side to the indicator pods and little scoops to replace the MC16's faired in indicators, but I don't think that's all copyable!
As for price, I'm not sure yet as we need to find out how much all the consumables are going to cost (this one was made with materials remaining from another job). It will naturally be a bit more than the GRP boxes that we did a couple years ago, but cheaper than the HRC airbox you can't buy from Honda any more!
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Andy.
NSR-WORLD.COM
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