I found some info on the internet .. http://nevcragg.com/2012/06/18/italy-delivers-wilier-twin-foil/
The last hurdle was to refit the Aero BB cover and fit the cranks. The Wilier uses a BB94 system, essentially a fully internal GXP version much like BB30. The smaller GXP sized bearings are pressed in and will only accommodate a 24mm crank spindle as found on a Shimano crankset or Sram GXP and Campy systems but you must fit each manufacturers BB spacer and plastic caps that Wilier produce to convert for each type specifically. I use SRAM and it required a SRAM adapter kit and S900 crankset with GXP arms to bolt in my Quarq (currently using the S975 BB30 Arms) The S900/975 comes apart at the spindle and this system allows me to have both sizes for my different bikes BB requirements, you just need a spare set of crank arms.
Some guy made this work for quarq on Sram s900 crankset. Soo the question is, is this what im looking for? and what adapter kit he used?.