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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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#1
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S8 exhaust
I know some of you guys have wired the flaps in the exhaust open. Is this a difficult job or relative easy? Ud like to do it to mine but I'm having trouble finding out how to do it. Any help would be gratefully received.
Steve |
#2
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It's easy mate, if I can do it anyone can
Have a look underneath at the back boxes and you'll see the vacuum units that operate the flaps. Shine a torch down the inner pipes on both sides and you'll see the flaps. Wedge them open and wire the linkages in that position with a piece of strong wire, job done. Probably easier with an extra pair of hands but once you take a look and understand how they're set up it'll make sense. A8 Doc posted some pics in the relevant D3 section back in 2011 so take a look at them if it'll help.
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Audi D3 S8 - 2007 - V10. B&O, Phantom Black, black and silver interior, and still completely standard with everything working as it should Audi TT - 2015 - Ultra |
#3
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Thank you very much, everyone on this forum are very helpful. Did it make of a difference? And sorry for the questions, would I be right on saying when in sport mode the flaps open up at all revs?
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#4
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The flaps open when more exhaust gas is forced through. They are not actuated with the throttle.
It's easy to keep them open. I cable tied mine open quite easily.
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Currently '8-less Previously: - Aqua Blue Pearl D3 S8 - Kamut Beige leather, ACC, B&O, factory RSE, solar sunroof, electric blinds, ski bag, Homelink, comfort headrests. - Aqua Blue D2 S8 - Grey leather/Alcantara - D3 A8 3.0 CVT - D3 3.7 V8 Last edited by Conquistador; 18th November 2015 at 10:50 AM. |
#5
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I used a large jubilee clip on mine. So far so good...
I would say at full throttle there is no difference (because they would have anyway be in the open position). However, on idle or light throttle there is a notable difference. A more pronounced bass sound. Maybe also a perceived quicker pick up too... |
#6
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Out of interest does the S8 exhaust fit onto a standard A8 4.2?
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#7
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Quote:
Tom
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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) |
#8
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That's correct, the additional length is in the earlier part of the exhaust system and the rear sections are similar with the exception you've noted for mounting. I had a modified exhaust on my A8L when I got it which was sold to another member and it went straight into his S8 with no issues.
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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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