Just wondering what diameter the exhaust outlet and downpipe are on an A5K? Also, how is the downpipe attached, v-band? bolted on flange?

Thanks

 

The Aurora 5000 uses a custom turbine housing. The rear of the turbine housing is machined flat and is drilled and tapped for and aluminum ring (flange)that is attached by 4 bolts.
The ring (flange) is setup to mate to a standard HX40
4" downpipe via V band clamp. On 3rd gens the Aluminum outlet ring from the Aurora mounts to the stock 4" turbo elbow that is supplied with 2004.5 and up turbos.

The flange is somewhat wide and I had to source a clamp to get it to work right for me.

 

Thanks for the info, thats just what I needed.