Wanted: S8 D3 (5.2L V10) Exhaust Boxes (OEM)

[aTOMic]

Originally Posted by Conquistador

As said, I've removed the pair of centre silencers closest to the rear before the back boxes and replaced with straight pipe as well as tying open the exhaust flaps on each back box. I couldn't believe how muted and quiet the S8 is as standard.

I can't speak for your car exactly but I had a full S8 exhaust system on my 3.7 V8 a few years back (also with a pair of silencers removed and flaps open) and this is what is sounded like on a cold start:
https://www.youtube.com/watch?v=GDLEeHywdRo

With the V10 there's a nice quiet burble at idle, and the modification really makes a difference throughout the entire rev range but above 4,000rpm it's just orgasmic but it never drones, so I think I've found the right balance.

Location of the straight pipe looking from the rear forwards:

Thanks for the video and picture; the fact that your car pictured has the frontmost silencers in place (way up by the cats) and yet sounds significantly louder (assuming they're the same car) gives me hope! Now all I need is some energy to get the heck outside and do the work! First must do brakes and oil change on a toyota "highlanderp" (parents' car, useful in towing dead deer from my backyard to random locations; we have a severe overpopulation of them here and I'm just doing my part. An A8 could do it, but it seems beneath their status; also I have to traverse a ditch which could serve VWAG as a control arm bushing testing grounds).

Anybody suggest a vacuum source in the trunk area? I'd like my valves to be user-switchable without having to "get on it" - the difference between our driving styles nets a +4 MPG advantage for my wife in "her" A8 already... and gas is up over $2 a gallon here (well, 93 ROM premium is $2.59). Sorry