I was giving a friends S1000RR a mechanical once over yesterday in preparation for an endurance race we are entering.
I was horrified to find the BMC race filter doesn't fit at all well and the frame is so flimsy it had allowed a gap of 3-4mm to open where air was allowed to bypass the filter

.
I have checked the part number and it is the correct part for the bike. Just a friendly heads up. It could well be a one off.