Its done by cutting some of the ends off (be carefull not to take off to much) then cutting slitts in the sides of the bends so that it is not quite so rigid (can now bend into the desired shape). Bolt lt into place working from middle outwards. Will need someone to hold whilst bolting on the bends as it will want to revert to its old shape.
Easy job, took bout 2hrs with a mate and we are both terrible at that sort of thing.
Looks good as well. Although lots of cars have them on, non look as good as the valver does with the Seat splitter as it looks totally right on the car (if fitted well). Should have been on as standard.
Kev