Ok this morning i was going to replace the cat with a de-cat pipe i made, on removing the cat i found it was empty.....all the guts had been taken out.
So i removed it and replaced it with a de-cat box and also cut out the middle box and put a straigt trough pipe in its place.
To be honest i think its maybe to loud for my liking but its ok.
I got a Scorpion GrpA system (2.5") on my V6 cav and a couple of months ago replaced the middle box with a straight through thingummy.. still got the cat fittred too... the benefits are not worth the hassle and disadvantages tbh..
Not made a whole lot of difference I don't think... sounds a bit nicer I guess..