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?