Range Rover Classic Exhaust

[205jsy]

Im looking at making my classic a bit louder. Its not going to be my daily driver anymore so i can deal with it being loud. Im looking for a center box replacement pipe (can find them for the v8 disco but not for the range rover for some reason) or a straight through exhaust pipe. Im not looking for a full stainless system (dont want to be spending more then £100 if nessesary) but if its possible i would like a straight through pipe from the downpipes back. Does anyone know if its possible to get either of these?