I spoke to the exhaust place today, they were suprised that the car was too quite as the back box is fairly small in comparison to the 3.5" bore exhaust system running through it. They say that we cant run the back box without wadding as the exhaust pulses could fracture the box but all we need to do is replace the perforated centre tube with a solid piece. This will protect the box and will increase the volume level significantly
