hi matey,just been under the back of my signum having a look at the idea you came up with,cutting off the bend on the tail pipes to fit the jetex exhaust trims.dont do anything until you check the diamiter of the tail pipes.they are different on both sides.left hand pipe measures 62mm diamiter the right hand side measures 52mm diamiter.now it may be possible to go with the 62mm and make up an adapter sleave of some sorts for the right hand side.i will be looking at this option as picking up a genuine back box would i imagine be a long process,and there's no way im paying £450 for a new one.