Note: This Suite can no longer be purchased as of the 2013 release. It is replaced by the Building Design Suites.
AutoCAD Revit MEP Suite combines AutoCAD MEP and Autodesk Revit MEP software. It’s one solution that supports both AutoCAD-based workflows and Building Information Modeling (BIM) for mechanical, electrical, and plumbing (MEP) design professionals.
Use the AutoCAD Revit MEP Suite to more accurately and efficiently design building systems with tools for drafting, design, analysis, and documentation.
More at: http://www.autodesk.com/revitmepsuite