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Been thinking of replacing the back box on my 2002 A8 4.2QS.

I have the 'stock' original in place which is very understated. I'd like something that filled the rear apron a little more with stainless steel pipes.

There's a franchise near me in the North East which makes up bespoke systems for your car.They're called Powerflow....anyone have any experience with them?

I know milltek seem to be popular but I couldn't run to a Grand just now for a full system, roughly how much would a back box set me back?

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My system is a powerflo and cost me around £700 cat back including a fairly complex and time consuming to make X-Pipe set up. I'm pretty happy with it over all, just a little droning when the system is hot and running in traffic at less than 2000 revs. I'd imagine if you went back box only then you should get it for less than £250 max.

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