That TSL back box is exactly what im after but with 3" fitting as i have RCM down pipe and centre.
RCM have a prototype on Ollys car at present,hopefully it will be ready early in the new year.
I want to keep as standard a look as possible

Any other manufacturers i could look at?
I want top quality 3" bore with 2.5" tail pipe,straight exit.Would idealy like to find something like the old janspeed or scorpion with an outward rolled tail pipe.