The omp cages are not allowed to be used in stage rally cars now. This is because of the twin bend in the front legs, however the msa have bought out a ruling to fix this problem which means you can fit an extra strenghten bar either side of the front legs, doing this would make the cage 'legal' again. So im guessing most people will be doing this mod, instead of ripping out the cage, and replacing with a new one...