A huge recommendation for Double S Exhausts in Cullompton.
They have patterns for LWB & SWB vehicles so can produce and send one out but for me they made a custom side exit system that is tucked up close to the floor & around the chassis rail and exits infront of the drivers side rear wheel (on a swb Alter II stationwagon).
The triple pass silencer they installed is much much quieter than my old twin silencer system (although that was peppered with holes!), the service I got was also great and the price was very reasonable too, especially for stainless!
I am not connected with these guys at all I am just impressed & would recommend.