C20xe in my corsa sport. Keeps bursting pipes. It cracks on the bend above where it screws into the pump. 3rd pipe now. It's p*****g me off now. I've only had this problem since my car has been running full power. Have no idea if this has anything to do with it? My return feed was quite restricted so I have sorted that now. Could this cause fluid to flow back into the pump and build up pressure? Many thanks for any input.