A8 Parts Forum  

Go Back   A8 Parts Forum > A8 D2 > D2 - Fuel and Exhausts

D2 - Fuel and Exhausts Everything to do with getting fuel into the engine, and fumes back out again

Reply
 
Thread Tools Display Modes
  #1  
Old 19th July 2012, 10:16 PM
SilverS8 SilverS8 is offline
Senior Member
 
Join Date: Jul 2011
Location: Norway
Posts: 362
Default 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
__________________
2003 Daytona Grey RS6
2000 Silver S8
2005 A6 1.8TQ Premium
1993 Audi S4 2.2 TQ MTM 330 (my first love!)
Reply With Quote
  #2  
Old 22nd May 2013, 06:32 PM
SilverS8 SilverS8 is offline
Senior Member
 
Join Date: Jul 2011
Location: Norway
Posts: 362
Default

No one?
__________________
2003 Daytona Grey RS6
2000 Silver S8
2005 A6 1.8TQ Premium
1993 Audi S4 2.2 TQ MTM 330 (my first love!)
Reply With Quote
  #3  
Old 22nd May 2013, 08:38 PM
awolfinsheepsclothes awolfinsheepsclothes is offline
Senior Member
 
Join Date: Dec 2011
Location: oldham
Posts: 315
Default

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!
__________________

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
Reply With Quote
  #4  
Old 11th June 2013, 11:10 PM
SyncroS8 SyncroS8 is offline
Senior Member
 
Join Date: Mar 2012
Posts: 279
Default

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
Reply With Quote
  #5  
Old 5th December 2016, 02:23 PM
aTOMic's Avatar
aTOMic aTOMic is offline
Member
 
Join Date: Feb 2012
Location: Moronville, TN (Middle Tennessee), USA
Posts: 83
Default

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.
__________________
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)
Reply With Quote
  #6  
Old 6th December 2016, 01:46 PM
Borys's Avatar
Borys Borys is offline
Senior Member
 
Join Date: Oct 2014
Location: Crawley
Posts: 291
Default

Emptying stock boxes bad idea, it will drone badly
Had that done, hated it
Reply With Quote
  #7  
Old 9th December 2016, 01:11 PM
aTOMic's Avatar
aTOMic aTOMic is offline
Member
 
Join Date: Feb 2012
Location: Moronville, TN (Middle Tennessee), USA
Posts: 83
Default

Thanks for the reply !
Mine's a D3 - could make a difference - doubt it though.
I DO want to avoid the drone like the plague; and like the toothpaste-back-the-in-the-tube, I doubt it'd be easy to replace the stuffin' on those boxes!
but I still haven't found that thread... haven't been on much lately - no time to search...

Thanks so much again & Merry Christmas
Tom
__________________
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)
Reply With Quote
  #8  
Old 16th December 2016, 05:32 AM
27litres's Avatar
27litres 27litres is offline
Senior Member
 
Join Date: Jan 2014
Location: Belgrave, Australia
Posts: 803
Default

It depends how the back box is made.
"Straight through" boxes use perforated pipes and still have sound deadening material in them.
Done properly, I don't see why it should drone...

Still, exhaust frequencies are a bit of a black art and manufacturers spend big $$ researching exhausts.
__________________
Cheers

Marty


____________________
Current:
2001 Audi S8 - Brilliant Black with Black interior, C5 RS6 rims (whenever I actually put them on...), Solar Sunroof, Tinted side and rear glass, RNS-D, Grom, Bose, clunky old phone in arm rest!
2002 Audi S8 - Project
Replacement head coming arrived thanks to MJ
Silver with Black interior. All features as the '01, with the 'S' mode auto shifter. Dodgey rear tint (need to find a way to get rid of that).
Family:
2009 Volvo XC90 V8 R Design
- has a louder more obnoxious exhaust than the S8, sounds great! Love this thing - Q7 was double the price, and certainly not double the car!

Sold:
1997 Audi A4
- Hamilton's Club Sport, Achat Grey (will miss the old girl)
Reply With Quote
  #9  
Old 16th December 2016, 12:26 PM
sarg sarg is offline
Senior Member
 
Join Date: Dec 2010
Location: West Northamptonshire
Posts: 1,999
Default

This is a very common modification on BMWs, this is the man you want to talk to:

https://www.facebook.com/Paulscarwelding/

http://www.exhaustmods.co.uk/
__________________
2019 BMW M5 (my daily driver)
2002 Mark's D2 S8 FE
2020 BMW M340d xDrive (Anely's daily driver)
2000 FL D2 4.2 QS - SOLD 2011

Reply With Quote
  #10  
Old 19th December 2016, 11:14 PM
aTOMic's Avatar
aTOMic aTOMic is offline
Member
 
Join Date: Feb 2012
Location: Moronville, TN (Middle Tennessee), USA
Posts: 83
Default

Quote:
Originally Posted by 27litres View Post
...Still, exhaust frequencies are a bit of a black art and manufacturers spend big $$ researching exhausts.
And I am convinced no one spends more than VWAG, my little Passat 1.8T sounds juuuust right, considering what it sounds like without an exhaust; and I've heard a lot of modified 1.8T exhausts, none of which I'd wish on an enemy... Do wish the turbo was audible though, but that's one thing the VWAG techs wanted to silence.

Quote:
Originally Posted by sarg View Post
This is a very common modification on BMWs, this is the man you want to talk to:

https://www.facebook.com/Paulscarwelding/

http://www.exhaustmods.co.uk/
Can't get his site to work and I'm allergic to FB (but I might try later) Anyway, Thanks; I'm in the US but I will talk to him (on speakerphone so my kids can hear how our language is PROPERLY pronounced - as opposed to the friggin hillbillies' diction here) - Hell, it costs me over $10,000 a year to send them to private schools so they do not think "Tire" and "Fire" have only one syllable. But that's another story... People in the Southern US are borderline retarded. Just watch the "Top Gear" where they tour my part of the country (sic) I assure you the rock throwing and other idiocy is NOT staged.

God bless you every one, and merry ****in Christmas ya burks.
__________________
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)
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 11:55 AM.


Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.