r34 thanks for the reply
i spoke to my local exhaust shop and they suggested 2 1/2 system with highflow cats and just a sports exhaust not a cannon they said they are removing more cannons then they are fitting them because police are just targeting people with cannon so i am told. I like the look of the cannons but if it is just going to get me a fine i am not to excited about that and that is a bummer because i was looking at getting one fitted