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D3 - Fuel and Exhausts Everything to do with getting fuel into the engine, and fumes back out again

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Old 5th January 2013, 08:56 PM
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Default 4.2 TDI Back Box's Delete?!?!

Anyone done this?

Yeh yeh I know its a Diesel but want a V8 sound....
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Old 6th January 2013, 12:49 AM
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Ive got a D2 3.7 V8 Petrol I've done it on - result was a lovely V8 burble now its done! link to the thread and a short video of the finished result HERE
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20" x 9" Bentley GTC Wheels with 385mm W12 Front Discs & Bentley Caliper Covers, Front Lowered on Coilovers, Xenons, Combined DRLs and LED Foglights to modified OEM front fog lamp position, Alcantara/Leather, Full Black Alcantara headlining + pillars and blind shelf, Bespoke Flat Bottomed Sports Steering Wheel, Dark Myrtle Wood, Autodim Mirrors, Bose, Blinds, Digital TV, Ski Hatch, Modified rear exhaust section for extra V8 Burble
Audi S8 D2 Final Edition 2002, Avus Silver with Red Leather Interior
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Old 6th January 2013, 09:33 AM
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Default Diesel though...

I'd already read you thread....and yeh looks and sounds good...but its not a diesel!!
I did it to an Allraod 2.5 v6 tdi and the result was believe it or not it sounded exactly the same.....I was gob smacked given the size of the rear box's...

There are performace rear box's on web and flebay for the 4.2 tdi that boast a berble....but thought full delete would be better...just need to know if anyone dune it without replacing the full system.
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Old 6th January 2013, 09:55 AM
ainarssems ainarssems is offline
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Turbo's, cats and DPF's do a lot of silencing so I think it will not change all that much if you remove backbox. I am not sure if exhaust is in one piece or several sections. If its several sections you can just remove rear part for testing purposes to see how it sounds without it?
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Old 8th January 2013, 06:13 PM
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Default Link inc.

Was looking at these:-
http://www.ebay.co.uk/itm/Sport-Perf...item256d6a88ee

Or Possibly seeing if these could be modified...

http://www.ebay.co.uk/itm/GENUINE-NO...item3ccd70e58f

But thought given the above (and not sure if mine has the DPFs 2005 model?) could I go my local stainless fabricator and just get them cut off and strieght through pipe to a set of nice Twin (quad) tails....

But as the boxes above state they give a berble did not want to get rid of the rear boxes and end up with a spitfire sound!!

The rear boxes as standard would have to be cut off, otherwise, yeh I'd have removed for a sound test.

Also if it does not make a differance why the hell did Audi fit such HUGE rear silencers????? 1, they are real heavy and 2 restrictive!!!????
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Last edited by R055Y; 8th January 2013 at 06:16 PM.
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Old 9th January 2013, 08:43 AM
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ok ive done this twice
1st i did my 3.0 tdi A6 just had POWERFLOW remove the back silencers and replace with stainless pipe and nice tail pipes (it was a tiny bit louder)

2nd i went to powerflow with my 2008 3.0 tdi A8 sport
i told them i wanted it louder so,,
they made a full system cat-back with larger pipe than the standard audi pipes
then added huge tail pipes ...........
it sounded amazing !! not too loud either,,just right,,
So i think a V8 diesel will sound amazing if you do the same....
and only around £400
made to measure there and then while you wait
lifetime warranty too

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Last edited by roberto; 9th January 2013 at 08:49 AM.
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  #7  
Old 9th January 2013, 09:41 PM
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Looks nice, where did you get the chrome mirrors from (look chrome but spoz could be white), other than gen S8 can't find them for mine...
Also which Powerflow dealer did the exhaust?
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A8 4.2 Twin Turbo TDI
Digital Remap
Twin Cone Filters
Upgraded 19" Rims
Back Box deletes with SS quad exits
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  #8  
Old 9th January 2013, 09:45 PM
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I do think it was a bit cruel making that small dog go down the exhaust pipes as a kind of "Doggy Pipe Cleaner" though Robert
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Confidence is the feeling you have before you know better . . . .
Audi A8 D2 3.7 Quattro Sport 1999 FL - Melange
2nd Place Winner - A8-Freunde Annual German Meet 2012 at Edersee
20" x 9" Bentley GTC Wheels with 385mm W12 Front Discs & Bentley Caliper Covers, Front Lowered on Coilovers, Xenons, Combined DRLs and LED Foglights to modified OEM front fog lamp position, Alcantara/Leather, Full Black Alcantara headlining + pillars and blind shelf, Bespoke Flat Bottomed Sports Steering Wheel, Dark Myrtle Wood, Autodim Mirrors, Bose, Blinds, Digital TV, Ski Hatch, Modified rear exhaust section for extra V8 Burble
Audi S8 D2 Final Edition 2002, Avus Silver with Red Leather Interior
Tiptronic with Sport mode button, Sony rear entertainment package, Bose sound system, Audi Navigation Plus, 20 inch Final Edition alloys, Full Cat Back Stainless Milltek exhaust, giving a great V8 burble
Audi A8L D2 4.2 Petrol with LPG - Ebony Black
Audi A8L D4 FL 4.0T Petrol twin turbo - Havana Black
Audi A2 1.6 FSi Sport - Dolphin Grey with Votex body kit and Red Leather Interior
and some other A8's A8L's and Mercs
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  #9  
Old 10th January 2013, 05:52 AM
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poor doggy
the mirrors are genuine S8 £500,s worth fitted by audi at PDI
any powerflow dealer will do the same job
mine was in doncaster 01302 337722
just bare in mind i had mine done in 2009
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  #10  
Old 10th January 2013, 08:30 AM
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The good thing is though, He/She fits!!!
That said I did have 8" tails on a car once...lol
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Upgraded 19" Rims
Back Box deletes with SS quad exits
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