Simulating industrial flows involving complex geometries with high-order CFD methods requires good-quality curvilinear meshes to ensure their accuracy, stability and computational efficiency. We describe a modification of the high-order mesh generator NekMesh to allow the curving of straight-sided meshes generated by third-party software to benefit from their robustness and flexibility. We propose further a modified workflow that maintains mesh conformity to the underlying CAD (B-rep) model, but most importantly it allows us to assess the geometrical accuracy and its potential impact on the flow simulation. Application to a simple benchmark test and a complex automotive geometry will demonstrate the suitability of the modified workflow and the resulting mesh quality.