Following some discussion in the BE Avant thread I thought it better to give this it's own. I'm just back from Milltek in Derby who developed a Quad Tail system for the A4/A5 platform on my car. After a couple of hundred miles under the belt I'm pleased to report all is well. Firstly a big thanks to the Milltek team, especially Kev who worked on my car and of course Phil for making it happen - It's been a pleasure. The sound is what I would describe as perfect for the A4/A5, not in your face or Chav loud but purposeful and refined - It simply releases the great 6 pot sound that (I think) we all love and want to hear. It is very well behaved in the cabin, and not even the slightest hint of a drone that some 3rd party exhausts have been known to give. I've yet to experience a 'Drive By' as I left Derby pretty quickly, keen to beat any traffic but from what I can hear with the windows down I don't think it'll be disappointing. I'll see what I can sort out later. Kev did say that remapped cars (mine isn't) will sound a little better with the higher boost pressures helping. The next production is scheduled and should be available from mid July. It is planned that this will be rolled out to all A4 variants as the tail pipes are now interchangeable. You do need an S-Line rear bumper and then the S4 rear valance and trim. If you are interested in a Group Buy I have approached a company whom have offered what I consider to be a very good deal and I'm happy to run with it if you wish - As usual start a list. I'd start thinking about an early order as the first batch may sell quickly with the A5 owners being interested. Below are the first few pictures I took with my iPhone right after I collected it, if you want any others just ask.