It's Forester specific, I think Remus do one too but its not in stainless steel so may be prone to rusting like my standard backbox was (the outer skin was gone at the front of the backbox and it was starting on the inner skin!).
As I was coming home yesterday afternoon I passed a neighbour who was on foot and when he caught up with me at the gate he said "That sounds different... it didn't used to sound like that! It sounds quite sporty!"
needless to say I was rather chuffed about that!