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| D2 - Fuel and Exhausts Everything to do with getting fuel into the engine, and fumes back out again |
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#1
19th July 2012, 09:16 PM
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Modify stock exhaust boxes for more v8 burble?
There has been several different mods on here to give the 8 more of the lovely V8 burble.
What are peoples opinion on removing the stock exhaust, cut open the boxes(on the top so MOT people won't notice) remove all the extra stuff inside and re-route the piping inside if needed to get straight flow before welding it back together.. It sure would be cheap parts 
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2003 Daytona Grey RS6 2000 Silver S8 2005 A6 1.8TQ Premium 1993 Audi S4 2.2 TQ MTM 330 (my first love!) 
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#3
22nd May 2013, 07:38 PM
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Snap! I to have thought about doing this and I may have a go if I can get a S8 back box at a sensible price. But I'm not in an any rush and mot stations in the uk don't care anyway. I've put hole saws through DPF and cats before with excellent results. Not a mark on the outside!
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 2002 S8 silver with black half leather 2000 d2 S8 in Racing green pearl, RS4 manual gearbox, 2003 A4 avant TDi 1997 Volvo V40 2.0T 1992 Mazda eunos v spec 1976 Reliant Kitten 1965 Porsche 911
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#4
11th June 2013, 10:10 PM
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I would suggest looking for a universal straight through exhaust box rather than cutting into your current one.
It will probably be cheaper and last longer than a modified version... However, if you do chop into it, you'll need to use perforated sections of pipe for the inside to allow some of the sound to expand into the silencer box. MG
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#5
5th December 2016, 01:23 PM
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Someone has already done this and documented it nicely with photos. I was searching for it when I found this. It may be on Audiworld.
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 I'm in love with a car.  2004 4.2L Petrol A8L Sage Green/Black (one of only five D3s thus colored sold in the US)
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#7
24th March 2017, 06:20 AM
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Quote:
It's quite a complex standard box. I would imagine partly to eliminate the drone.
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Currently driving - '99 Silver A8 D2 FL 4.2 QS Currently for work - '08 Raven Blue T5 174
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#8
24th March 2017, 06:23 AM
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 He removed all the internal pipework, simplified it and fitted a tiny silencer on one side. This is the result: https://youtu.be/vmTBmFLsGUY
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Currently driving - '99 Silver A8 D2 FL 4.2 QS Currently for work - '08 Raven Blue T5 174 Last edited by Mugzee; 24th March 2017 at 08:42 AM.
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#9
24th March 2017, 10:30 AM
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A8freunde member Tennohund modified his exhaust by removing the H-pipe and putting straight through pipes (I think) through all the boxes.
He achieved a very nice sound (IMO). I cant find the original post on A8freunde forum where he posted pictures of the modifications, but he has re-posted a picture on another forum. http://www.motor-talk.de/forum/sport...55.html?page=2 There were several youtube videos with apparently no serious drone. Only one video remains its been re-posted after the owner deleted the originals. This one does not show in cabin so can't judge for drone. https://www.youtube.com/watch?v=vmTBmFLsGUY&t=21s I copied the photo from the other forum for future reference in case the thread gets deleted. Last edited by Goran; 24th March 2017 at 10:39 AM.
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#10
24th March 2017, 07:20 PM
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Ahh yes, Tennohund, I remember now. I did wonder where all his videos had gone. He showed some stills at the beginning of a video showing what the inside looked like.
It does sound great.
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Currently driving - '99 Silver A8 D2 FL 4.2 QS Currently for work - '08 Raven Blue T5 174
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