Is the cat still fitted on yours? It looks like it from the photo.
Makes quite a difference if you chuck a replacement pipe on there instead.
My current one has that, a remus 2-2 system, ecu chip, K&N and a larger CF intake pipe. I reckon it must be up to a heady, genuine 90rwbhp
It's the second one I've had. Got a real soft spot for them. Might as well be on different continent though for the amount of time I spend on it these days.