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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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#11
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Quote:
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Currently 8less 2011 Q7 S Line 3.0TDI, 2016 Tesla Model S 90D 8 history: 2006 A8 Sport 4.2TDI quattro SOLD, 1997 S8, reached end of life with gearbox failure |
#12
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and none at at sounds really good but I have no idea what it does to power
You could make the new system so that the x section is independently removable, then you can play with different styles and see what it does. |
#13
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That's the usual wisdom of X-pipe vs H-pipe (that X-pipe surrenders some low end torque).
However the one I have been looking at that was developed for Porsche 928 seems to increase torque across the whole range. http://www.performance928.com/cgi-bi...ss_parent=1128 But on the other hand will it work well with Audi's 4.2 V8? How different is the 928's V8 from the Audi V8? who knows. I would think any X-pipe works better before the cats, not sure that the cross-over can pull the gasses from opposite bank as well through the mesh of the cat. I'm not sure if there is enough room in the D2 to put it before the cats. I'd have to disagree about the sound Mikki, I had a x-pipe on my previous S8 it sounded gorgeous. Also just check out some of them on youtube, they sound very good. https://www.youtube.com/watch?v=QbaSAxgxtPc https://www.youtube.com/watch?v=nqrufMqTQpY Last edited by Goran; 5th February 2016 at 08:31 PM. |
#14
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I'm not saying an x pipe doesn't sound good, just that no x also sounds good
This isn't the vid I wanted, but it'll do. https://www.youtube.com/watch?v=mANtLFlyYrw I tried open downpipes with my old V8 too. Thats also interesting |
#15
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Yup that sounds pretty damn good
You inspired me to find a no-exhaust video https://www.youtube.com/watch?v=N26o9C5OBY0 found a better one, wow this is amazing! https://www.youtube.com/watch?v=KkglRtuqDt8 Just chopping out the rear box sounds amazing too! https://www.youtube.com/watch?v=SYLUfVVCkb4 Last edited by Goran; 7th February 2016 at 09:04 AM. |
#16
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Yes it does, I've done that on my D2 and it sounds awesome - deep boomy v8 when driving and like that video you linked to when you floor it!
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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 |
#17
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Hi,
On my previous LPG car (V6 Vectra) I removed the CAT as LPG clean enough to not need it. Sound improved no end... Robert
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3.7 to the stars... D2, LPG kit, March 2000(road tax...) |
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