Only source seems to be Melvyn Rutter. Have now ordered a new box and tail pipe. The hole/s are (were - temporarily filled with exhaust putty from Halfords) underneath the exit pipe at the rim of the box.
Does anyone have experience of the difference between the tail pipe with resonator and the straight through pipe? Currently the noise is a mellowed burble - very pleasant and discreet. I assume a staright through will be noisier but will it 'burble' more?
