Performance Pack Exhaust

Does anyone know if the exhaust silence on the Performance Pack is any bigger than the one on a standard Exige S. The reason I ask is before changing my car last month I took the Sports Exhaust off and put the std one back on with the intention of fitting the sports exhaust to the new car. This was a simple job as there was enough clearance to slide the silence to the right and separate it from the Cat. However went to put the Sports Exhaust on the new car last night and there doesn’t seem to be enough room to slide the silence across to the right without it fouling the rear chassis member. It looks like the only way to change it is to remove the exhaust complete with the Cat and then split the 2 parts before refitting.