Non res FTW!!!
The resonated system will actually give you a quieter exhaust than stock. I have a non res on mine and i still find it to quiet
Not a chance mate, sorry. I had a res system on mine last year and it was no way quieter than standard. It isn't a great deal louder when cruising etc, but under WOT it is fairly loud (especially if you are behind/outside the vehicle).. It does help if you have the DP on as well though..
There is always the VWR/Milltek system like I have. Kind of a cross between Res and Non Res, with a shallow rear box on it (so it's not in sight when behind the vehicle). Oh and it is loud enough I can assure you, just not chavvy loud.
Gives you another option I suppose..