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Old 09-16-2004, 12:28 PM   #1
Sven_S8
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Default X-Crossover Fitted!

So, yesterday I went to the far north again, to get my X-pipe mod done at EPS.

The same mechanic who fitted the Quad exhaust went to work straight away. By the time I poured myself a cappuccino the H-crossover was already on the floor.



He looked, grabbed some pipe and went to work. Cutting, fitting, and some more of that.




This guy must really have an eye for things, as he got it right in one go.




Then came the welding.



And the result...



Adjusting the end pipes... (On a very dirty S8 - sorry for that!)




And now the result... Much to my surprise the sound is softer. Didn't expect that really. It's also 'rounder', and more 'balanced', which was expected.

It sounds more 'German' now, if that makes sense. Less low V8 rumble, more an aggressive rev-happy performance sound. Less noticeable on cruising speeds, but as soon as you blip the throttle there's little doubt what this baby can do.

(Yes, I'm already wondering again what-if no-cats etc) :grin:


Performance is definitely improved in the higher revs. Again as expected, but more noticeable as I had dared to hope.

On an initial test, the MAF reading came to 292.5 g/s. Not too shabby methinks.


+++
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Audi S8 4.2 40V Tiptronic
Ebony Black Pearl
Alcantara Plus package
Recaro seats
Satnav Plus DX TMC
TV tuner
Bose sound system
Bi-Xenon headlights
Laminated windows
Solar roof
Privacy package
Heated windscreen
Tire Pressure Control
6XL mirrors
Rear seat package
And all the other goodies...
Mods:
Titanium tints
Quad EPS exhausts *
X-Crossover *
K&N air filter *
V-max unrestricted *
Aluminum dash rings *
Adjustable Intrax-Racing suspension! *
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Old 09-16-2004, 01:14 PM   #2
Paldi
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Default A work of art! :-)))) Looks Great!!!!

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Old 09-16-2004, 01:22 PM   #3
ryoung
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Default Absolutely outstanding ...

And the 292.5 g/sec MAF reading definitely sets a new benchmark, along with the quality of your mechanic's work !!

I've heard from others that the x-crossover results in a 2-3 dB quieter exhaust, which is probably the "softer" that you're reporting. Overall, it looks like the x-crossover is an improvement in every way.

Finally ... you're wondering about what-if-no-cats, and I'm wondering about what-if-no-rear-muffler :-)
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Old 09-16-2004, 01:43 PM   #4
Ross:D
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Default TPIWWSC!!! (SC=sound clip) 8^)

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2000 A8 4.2 | cold package | nav | security glass | Bilsteins & Eibachs | 18" RS4 wheels
VAG-COM mods: sport mode (00032), auto-lock (15148) & Parktronic (volume & pitch)
Phatbox | V1 & LE-30 dual | debadged | Magnaflow | LATCH (dealer retrofit) | other goodies

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Old 09-16-2004, 01:55 PM   #5
Sven_S8
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Default Thanks!

I thought about the mufflers too... Either the center or the rear boxes. Center would be easier methinks (it's onle one to begin with). However, the fancy RMB's H2Ocooler posted have crossed my mind as well.



That will be tricky to get on the right side though, given the bend around the spare wheel well.





The cats would be very interesting regarding their restrictive nature. We'd have to solve the backpressure issue (remap?) as well as see what the sound would be like. The latter is no big issue, I still have the pipes...

Without the crossover and cats it was too loud for my liking, and possibly as well with the H and no cats. With the X it *might* work.

NB, it's not exactly quiet now, but a bit more modest. This time granny may survive when you start up the car. Untill you blip the throttle that is.
__________________

Audi S8 4.2 40V Tiptronic
Ebony Black Pearl
Alcantara Plus package
Recaro seats
Satnav Plus DX TMC
TV tuner
Bose sound system
Bi-Xenon headlights
Laminated windows
Solar roof
Privacy package
Heated windscreen
Tire Pressure Control
6XL mirrors
Rear seat package
And all the other goodies...
Mods:
Titanium tints
Quad EPS exhausts *
X-Crossover *
K&N air filter *
V-max unrestricted *
Aluminum dash rings *
Adjustable Intrax-Racing suspension! *
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Old 09-16-2004, 02:06 PM   #6
Sven_S8
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Posts: 566
Default INATVCTCMAVCTMNB

Or: I need a TV card to connect my analogue video camera to my notebook.

Thought I could do that with the S-Video connector, but apparently that's an out only.

Now they tell me I need a €225 'box' to connect the camera to the notebook. (Then I can watch TV on it as well, yay) --> linky

F'n computers... :-/
__________________

Audi S8 4.2 40V Tiptronic
Ebony Black Pearl
Alcantara Plus package
Recaro seats
Satnav Plus DX TMC
TV tuner
Bose sound system
Bi-Xenon headlights
Laminated windows
Solar roof
Privacy package
Heated windscreen
Tire Pressure Control
6XL mirrors
Rear seat package
And all the other goodies...
Mods:
Titanium tints
Quad EPS exhausts *
X-Crossover *
K&N air filter *
V-max unrestricted *
Aluminum dash rings *
Adjustable Intrax-Racing suspension! *
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Old 09-16-2004, 02:09 PM   #7
escapA8
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Default Got a clip? I'll host it! So was that great welding done in Friesland or Groningen?

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1997 A8 3.7 FWD
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Old 09-16-2004, 02:10 PM   #8
Ross:D
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Default LOL! Looks great!

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2000 A8 4.2 | cold package | nav | security glass | Bilsteins & Eibachs | 18" RS4 wheels
VAG-COM mods: sport mode (00032), auto-lock (15148) & Parktronic (volume & pitch)
Phatbox | V1 & LE-30 dual | debadged | Magnaflow | LATCH (dealer retrofit) | other goodies

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Old 09-16-2004, 02:11 PM   #9
ryoung
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Default I've been thinking of a simpler system.

cats ... x-pipe ... center muffler ... single driver's side 3-1/2" pipe ... single oval tip

A single 3-1/2" pipe has the same cross sectional area as two 2-1/2" pipes, and the whole thing probably weighs 50 lb less than the OE exhaust.
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Old 09-16-2004, 02:26 PM   #10
Sven_S8
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Posts: 566
Default Grun! :-)

Hoogezand, or Kiel Windeweer to be exact. ;-)

EPS

Enter 9605 PX here where it says 'postcode'. then click 'toon kaart' (zoom out). It's in English too BTW, just click the flag.

I have no digital clip yet, but I'm working on it! Thanks for the offer!
__________________

Audi S8 4.2 40V Tiptronic
Ebony Black Pearl
Alcantara Plus package
Recaro seats
Satnav Plus DX TMC
TV tuner
Bose sound system
Bi-Xenon headlights
Laminated windows
Solar roof
Privacy package
Heated windscreen
Tire Pressure Control
6XL mirrors
Rear seat package
And all the other goodies...
Mods:
Titanium tints
Quad EPS exhausts *
X-Crossover *
K&N air filter *
V-max unrestricted *
Aluminum dash rings *
Adjustable Intrax-Racing suspension! *
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