Only one (reasonably priced) option and that's SS lightweight backbox. It sounds great, looks great and weight is only 10kg's not 20. Standard back boxes are 25kg's+.
I have std cats, SS silenced centre section with SS lightweight BB. Very pleased. Rob swopped to his current SS backbox after a Miltek and after listening to mine at CC. Robs flyby is a reasonable representation of the sound but still doesn't sound like it does in the flesh. His car sounds lush and so does mine.
