My backbox has a appears it needs a bikini wax......It appears to have losing hair (sound deafening fibre) out the tailpipe that im fed up of pulling out . After only covering around 9k miles this is pretty trash! Emailed the company i got it from as it has a 2 year warranty with it but i have a feeling its just out of the 2 year mark. Still the car sounds pretty nice haha (thanks to my straight through centre pipe too) !