Cut away parts where tubes enter cylinder

Hello,

I have a couple of cylinders and loads of tubing. Everything is together as multiple bodies in 1 part. The tubing is made out of a combination of weldment features and thin sweeps.

Is there an easy way of cutting holes in the cylinders where the tubing goes through?

A surface cut would work, but it doesn't recognise the faces of the tubing as a surface. The Split feature doesn't seem to answer my question either.

Thanks

Tom

SolidworksParts And Features