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-   -   Fitting a straight pipe (3.7 V8) (https://forum.a8parts.co.uk/showthread.php?t=6379)

Conquistador 1st May 2013 12:55 PM

Fitting a straight pipe (3.7 V8)
 
Hi all,

I'm looking into increasing the sound from my A8, so would removing the centre silencers and fitting a straight through pipe achieve this? The V8 burble I've got at the moment is just a bit too sedate!

Removing the rear silencers would make it too loud I think.

And am I also correct in assuming it will still pass an MOT as long as the cats aren't removed?

Thanks :cool:

Conan_the_Librarian 1st May 2013 04:54 PM

Architex matey has removed the back box and his 3.7 sounds the mutts. When I removed the center box on my S8 I got resonance at town speeds. Motorway speed were fine but the was a bit more intrusion in the cabin.

Architex_mA8tey 1st May 2013 06:00 PM

Get along to the annual meet next month and hear it in person!!
the sound with straight pipe and no back box is sublime! :D
I'll try and take some more video when i get the chance - there is some resonance on mine at around 2500 rpm but otherwise its ok. In a perfect world you would fit a system with valves that can be actuated so you get the best of both worlds but mine was a relatively cheap mod for the awesome sound it makes +++

Conquistador 1st May 2013 09:45 PM

Hmm I well come along to the next meet.

Would removing the centre silencers have a bad effect on back pressure?

Or would it be good to just install a bigger intake? :Confused:

Architex_mA8tey 2nd May 2013 07:23 PM

Quote:

Originally Posted by Conquistador (Post 56840)
Hmm I well come along to the next meet.

Would removing the centre silencers have a bad effect on back pressure?

Or would it be good to just install a bigger intake? :Confused:

You need to come along to the Annual meet, its a great weekend and it would be great to take a look at your car!
Video from when we first fitted it is HERE

I'm hoping to have the 390mm W12/Bentley Front Discs on by then with some Bentley Covers so you can see if you like the size! +++

Conquistador 17th September 2013 03:45 PM

Car booked in next week to have all silencers removed apart from the rear most boxes where the exhaust tips are attached

Getting it done by AMD - www.amdtuning.com

They seem quite competent and work on a lot of Audis going by their gallery.


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