Milltek drone

4.2 V8 40v Naturally Aspirated - 339bhp
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archboldm
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Milltek drone

Post by archboldm » Fri Nov 14, 2008 11:47 pm

Having successfully fitted a B7 resonated catback Milltek to my B6 avant,I am getting a really loud droning noise inside the car at between 1500-2000 rpm ?? Is this normal & can it be deadened ?
S4 avant nogaro blue '04' bog standard apart from LPG conversion & B7 milltek catback system (resonated)

johnp68
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Post by johnp68 » Sun Nov 16, 2008 9:57 am

Well it's certainly not normal for a B6 resonated catback Milltek on a B6 saloon

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archboldm
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Post by archboldm » Mon Nov 17, 2008 7:52 am

Agree it's not normal, but it looks & sounds great,apart from that damned droning !!!!
S4 avant nogaro blue '04' bog standard apart from LPG conversion & B7 milltek catback system (resonated)

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BlingBling
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Post by BlingBling » Mon Nov 17, 2008 9:07 am

Droning is something you have to live with. The standard systems drones too. It is a nasty trait of the V8.

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archboldm
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Post by archboldm » Mon Nov 17, 2008 6:30 pm

It certainly wasn't as noticable on the original system as it is on the Milltek,but I suppose it's a small price to pay for the sound outside the car !!!
S4 avant nogaro blue '04' bog standard apart from LPG conversion & B7 milltek catback system (resonated)

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Awesome_Andy
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Post by Awesome_Andy » Tue Nov 18, 2008 11:53 am

We havent fitted a B7 system onto a B6 before, but wouldnt expect there to be a huge difference. How long has the system been on the car for now? It may settle down a little bit.

Your right though they sound amazing with the system on.

Do you have any pictures of it fitted?

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archboldm
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Post by archboldm » Tue Nov 18, 2008 9:29 pm

No pictures,but only cos I cant figure out how to download them.;If somebody could explain it to me,I can post pictures of the exhaust on the car & the gas conversion. System has only been on the car for 1 week !!
S4 avant nogaro blue '04' bog standard apart from LPG conversion & B7 milltek catback system (resonated)

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archboldm
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Post by archboldm » Tue Nov 18, 2008 10:28 pm

Oh,there was just one small problem.where the system joins the cats,there was a difference in the diameter which required sleeves to be made to step it up.
S4 avant nogaro blue '04' bog standard apart from LPG conversion & B7 milltek catback system (resonated)

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Awesome_Andy
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Post by Awesome_Andy » Wed Nov 19, 2008 10:45 am

Best way to upload the photo's would be through a http://www.photobucket.com you can upload the pictures onto there. Once you have done that you just need to post the address for them on here using the IMG button on here. So it would appear as [img]**Your%20address%20for%20the%20picture%20here**[/img] (without the spaces in there).... i hope that makes sense :)

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archboldm
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Post by archboldm » Sun Nov 23, 2008 9:01 pm

None whatsoever !!!! Just a Geordie thicko ?
S4 avant nogaro blue '04' bog standard apart from LPG conversion & B7 milltek catback system (resonated)

P_G
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Post by P_G » Sun Dec 28, 2008 2:02 pm

Most S4 exhausts reach resonance frequency between 1500 and 2000 rpm hence the drone. Milltek is no different, the sleeves will not make any difference either. I had an AAS 3" s/s system fited to my B6 S4 and it required sleeves as well making the step up from 1.75" to 3" pipes.

Did you get it fitted at Revolution?

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archboldm
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Post by archboldm » Tue Dec 30, 2008 1:31 pm

No,as it happens,I have a mate who works at the local Kwikfit,he did it for me one afternoon.Am now getting used to the drone,but as a taxi,I'm sick of customers asking if the exhaust is blown !!!!!
S4 avant nogaro blue '04' bog standard apart from LPG conversion & B7 milltek catback system (resonated)

david7m
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Post by david7m » Tue Dec 30, 2008 1:46 pm

You've got an S4 as a taxi?

Dave
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archboldm
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Post by archboldm » Tue Dec 30, 2008 2:08 pm

Oh yes,I figured that if I was going to spend half my life sitting in a car,it had to be one that puts a smile on my face while i'm driving it. AND IT DOES !!!!
S4 avant nogaro blue '04' bog standard apart from LPG conversion & B7 milltek catback system (resonated)

P_G
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Post by P_G » Tue Dec 30, 2008 2:47 pm

If you ever want to get the full system I'd recomend AAS in Bells Close Industrial Estate in Lemington / Scotswood, they transformed my S4 and a damn sight more cost effective than Milltek for just as good individualised workmanship.

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