B5 S4 and RS4 noise tests

Discuss common aspects of Audi RS and S tuning and modifications
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Doug_S2
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Post by Doug_S2 » Wed Feb 13, 2008 6:58 pm

miltek resonated hae an insert with a small layer of packing btween the outsdie pipe and an internal holed tube(don't know how to desribe it better)

S4 ko3s stock exhaust = 77 dB
S4 ko3 turbos stock DPs and 3" miltek catback = 77.5dB (does sound deeper though)
S2 Coupe : S4 B5 WB : RS6 C5 : S4 B8 : R8 V8 Turbo : Q7 4.2 TDI

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Doug_S2
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Post by Doug_S2 » Wed Feb 13, 2008 7:00 pm

Leon - i would say we can get our exhasuts 5-7 dB quieter with 2 boxes - these tests aten ot great for driveby but i know mine was 105db driveby at donny and 103dB with cans - so if i can quietne the car 5-7 dB with an other box it brings it dow nto acceptable ish levels.
S2 Coupe : S4 B5 WB : RS6 C5 : S4 B8 : R8 V8 Turbo : Q7 4.2 TDI

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S4
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Post by S4 » Wed Feb 13, 2008 10:02 pm

Doug_S2:miltek resonated hae an insert with a small layer of packing btween the outsdie pipe and an internal holed tube(don't know how to desribe it better
So this really helps the cabin droan?


Darren

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Doug_S2
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Post by Doug_S2 » Thu Feb 14, 2008 3:40 pm

it does help the droan.

Who is going to get all these numbers in a table on the first post!

s4 200 cell miltek DPs + 3" milltek catback = 80.8dB
s4 ko4 turbos, stock s4 DPs no precats, 3" single milltek catback = 78.5dB
S2 Coupe : S4 B5 WB : RS6 C5 : S4 B8 : R8 V8 Turbo : Q7 4.2 TDI

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Post by MarkB » Thu Feb 14, 2008 3:48 pm

S4 Nocat Milltek DPs, 3" catback s4 ko3 = 82.2dB (Chris_M)
RS4 no cats RS full exhaust(2 boxes) K16s = 94.4dB
S4 nocats full custom(smallish bore) k04 = 82.1dB (Dr_Wimpkins)
Renault Scenic - the Ash express = 81.3dB
s4 200 cell miltek DPs + 3" milltek catback = 80.8dB
s4 ko4 turbos, stock s4 DPs no precats, 3" single milltek catback = 78.5dB
Mark

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Doug_S2
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Post by Doug_S2 » Thu Feb 14, 2008 4:26 pm

a few more results need to be added to that list form previous posts!
S2 Coupe : S4 B5 WB : RS6 C5 : S4 B8 : R8 V8 Turbo : Q7 4.2 TDI

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Post by MarkB » Thu Feb 14, 2008 4:37 pm

S4 Nocat Milltek DPs, 3" catback s4 ko3 = 82.2dB (Chris_M)
RS4 no cats RS full exhaust(2 boxes) K16s = 94.4dB
S4 nocats full custom(smallish bore) k04 = 82.1dB (Dr_Wimpkins)
Renault Scenic - the Ash express = 81.3dB
s4 200 cell miltek DPs + 3" milltek catback = 80.8dB
s4 ko4 turbos, stock s4 DPs no precats, 3" single milltek catback = 78.5db
S4 ko3s stock exhaust = 77 dB
S4 ko3 turbos stock DPs and 3" miltek catback = 77.5dB (does sound deeper though)
ads4 95db at Castle Combe - Milltek 100cpsi with dual resonated link pipes.

Better Sir? I'll try and stick it in a spread sheet...
Mark

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Doug_S2
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Post by Doug_S2 » Thu Feb 14, 2008 4:48 pm

mine is still missing! but you are getting better :D
S2 Coupe : S4 B5 WB : RS6 C5 : S4 B8 : R8 V8 Turbo : Q7 4.2 TDI

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Post by MarkB » Thu Feb 14, 2008 6:03 pm

S4 Nocat Milltek DPs, 3" catback s4 ko3 = 82.2dB (Chris_M)
RS4 no cats RS full exhaust(2 boxes) K16s = 94.4dB
S4 nocats full custom(smallish bore) k04 = 82.1dB (Dr_Wimpkins)
Renault Scenic - the Ash express = 81.3dB
s4 200 cell miltek DPs + 3" milltek catback = 80.8dB
s4 ko4 turbos, stock s4 DPs no precats, 3" single milltek catback = 78.5db
S4 ko3s stock exhaust = 77 dB
S4 ko3 turbos stock DPs and 3" miltek catback = 77.5dB (does sound deeper though)

ads4 95db at Castle Combe - Milltek 100cpsi with dual resonated link pipes.

Dougs Mota! 101.5 dB (but Castle Combe said 99 and 100 dB)
Mark

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Post by dace » Thu Feb 14, 2008 11:12 pm

S4 Nocat Milltek DPs, 3" catback s4 ko3 = 82.2dB (Chris_M)
RS4 no cats RS full exhaust(2 boxes) K16s = 94.4dB
S4 nocats full custom(smallish bore) k04 = 82.1dB (Dr_Wimpkins)
Renault Scenic - the Ash express = 81.3dB
s4 200 cell miltek DPs + 3" milltek catback = 80.8dB
s4 ko4 turbos, stock s4 DPs no precats, 3" single milltek catback = 78.5db
S4 ko3s stock exhaust = 77 dB
S4 ko3 turbos stock DPs and 3" miltek catback = 77.5dB (does sound deeper though)
ads4 95db at Castle Combe - Milltek 100cpsi with dual resonated link pipes.
Dougs Mota! 101.5 dB (but Castle Combe said 99 and 100 dB)
RS4 full Milltek 100cpsi = 95db (Dace)
Dave

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GrahamS4
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Post by GrahamS4 » Fri Feb 15, 2008 7:53 am

Can we have these in order of dB? (sorry)

S4 ko3s stock exhaust = 77 dB
S4 ko3 turbos stock DPs and 3" miltek catback = 77.5dB (does sound deeper though)
s4 ko4 turbos, stock s4 DPs no precats, 3" single milltek catback = 78.5db
s4 200 cell miltek DPs + 3" milltek catback = 80.8dB
Renault Scenic - the Ash express = 81.3dB
S4 nocats full custom(smallish bore) k04 = 82.1dB (Dr_Wimpkins)
S4 Nocat Milltek DPs, 3" catback s4 ko3 = 82.2dB (Chris_M)
RS4 no cats RS full exhaust(2 boxes) K16s = 94.4dB
ads4 95db at Castle Combe - Milltek 100cpsi with dual resonated link pipes.
RS4 full Milltek 100cpsi = 95db (Dace)
Dougs Mota! 101.5 dB (but Castle Combe said 99 and 100 dB)


The Scenic is a shocker!
GrahamS4 wrote:
S4 ko3s stock exhaust = 77 dB
S4 ko3 turbos stock DPs and 3" miltek catback = 77.5dB (does sound deeper though)

Would be interested in how my RS4 catback fits compared to these two.
Present: 2010 Ice silver B8 S4 s-tronic saloon (standard)
Past: 1998 Agate grey B5 S4 saloon (MRC tuned)
Hers: 2011 Volcano red 8P A3 Sportback 2.0 TDI 170 sport quattro

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Doug_S2
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Post by Doug_S2 » Fri Feb 15, 2008 8:58 am

drop in anytime and we can do the test
S2 Coupe : S4 B5 WB : RS6 C5 : S4 B8 : R8 V8 Turbo : Q7 4.2 TDI

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Doug_S2
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Post by Doug_S2 » Fri Feb 15, 2008 11:23 am

S4 ko3s stock exhaust = 77 dB
S4 ko3 turbos stock DPs and 3" miltek catback = 77.5dB (does sound deeper though)
s4 ko4 turbos, stock s4 DPs no precats, 3" single milltek catback = 78.5db
s4 200 cell miltek DPs + 3" milltek catback = 80.8dB
Renault Scenic - the Ash express = 81.3dB
S4 nocats full custom(smallish bore) k04 = 82.1dB (Dr_Wimpkins)
S4 Nocat Milltek DPs, 3" catback s4 ko3 = 82.2dB (Chris_M)
RS4 no cat milltek downpipes, milltek resonated catback 91dB (Ash)
RS4 no cats RS full exhaust(2 boxes) K16s = 94.4dB
ads4 95db at Castle Combe - Milltek 100cpsi with dual resonated link pipes.
RS4 full Milltek 100cpsi = 95db (Dace)
Dougs Mota! 101.5 dB (but Castle Combe said 99 and 100 dB)
S2 Coupe : S4 B5 WB : RS6 C5 : S4 B8 : R8 V8 Turbo : Q7 4.2 TDI

http://www.MRCtuning.com
http://www.facebook.com/mrctuning

Blue_Thunder
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Post by Blue_Thunder » Fri Feb 15, 2008 11:28 am

I have an estimate on a 1.2 beast I saw the other day:

Vauxhall Nova in McDonald's Drive Thru carpark - 1000db

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spen
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Post by spen » Fri Feb 15, 2008 12:05 pm

was that the exhaust or the bass box?
S4 - no longer missing 1 engine. Last seen leaving trailing black lines of gearbox oil.

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