Greetings all - I have a hole in one of the rear brakepipes on my 2005 NB. Got the flaring kit and piping ready and have jacked the car up on stands. Took a look underneath and have located the section I need to replace, however the lines are held in place by some retainers. Kind of expected these to have either a bolt or screw holding them on but they don't appear to, moreover they just seem to have a plastic + sign on them. Does anyone know how to either reomve, loosen or open these so I can get some play to loosen the pipe section please?