Creaking noise solved Epic Carbon
Had a creaking noise while peddling on my Epic comp.
Replaced bottom bracket bearings, lubed pedals and replaced pivot bearings.
Still had noise.
Removed the plastic (Delrin) sleeves that the BB bearings thread into and are pressed into the frame, applied a thin film of Silicone gasket sealant and no more noise.
sadly, like the element
I also had a creaking noise on my 2011 Epic, turned out the drive side bearing had exploded. Luckily got it repaired under warranty through SRAM.
The shop called me back a couple days later and told me that Specialized has sent out a tech bulletin 3 days after I had got my bike back regarding the bearings needing to be glued into place and that hadn't been done at the time my bike was assembled but that they had done it when putting the replacement crank and bottom bearings back in. So you might want to check if your bottom bracket/races were installed properly the first time with the epoxy/loctite from the factory.