All,

Thanks for taking the time to look at this for me your help is appreciated.  I apologize if this question has been asked before.  My problem is simple in theory, but I just can't get SolidWorks to do what I need it to do.  Basically, I have the exhaust flange shown below and  I would like it to follow the red line and remove the sharp corner.  The issue I am have is that the manifold itself is imported so I do not have a sketch or anything to work from and since the manifold is not a perfect cylinder I cannot do a revolved cut.  My first attempt I tried to extend some surfaces then use the intersect command to remove the extra material leaving me with a sharp ~90 deg corner that  I could then fillet.  Anyone have any suggestions?

Thanks again