2016 Audi S6 Avant in Sepang too quiet

[pez81]

Just picked up my new car on Friday it took an age to get here but it's stunning. My only gripe and it really is a first world problem is the lack of noise/growl. My last S4 B8 was way louder than this. So I'm looking for a new exhaust and hoped I could get some feedback from anyone.
Resonated: are these still quiet? Aocal dealer said they are about as loud as stock but I can't believe that as its virtually silent.
Non resonated are they still tasteful when not flooring it?

Heard mixed reports about milltek but they do seem the favourite.
Other brands I've looked in to are supersprint and AWE.

I really want to hear more overrun and pops and bangs. Do any exhausts give you more of that? I heard a Milltek that seemed to.

I'm based in the UK if that helps.

[hubris]

Just picked up my new car on Friday it took an age to get here but it's stunning. My only gripe and it really is a first world problem is the lack of noise/growl. My last S4 B8 was way louder than this. So I'm looking for a new exhaust and hoped I could get some feedback from anyone.
Resonated: are these still quiet? Aocal dealer said they are about as loud as stock but I can't believe that as its virtually silent.
Non resonated are they still tasteful when not flooring it?

Heard mixed reports about milltek but they do seem the favourite.
Other brands I've looked in to are supersprint and AWE.

I really want to hear more overrun and pops and bangs. Do any exhausts give you more of that? I heard a Milltek that seemed to.

I'm based in the UK if that helps.

I have only seen positive reviews about Milltek products on this forum, at least on this specific subsection (and I share that sentiment).

Ultimate growl will be non-resonated with downpipes. If you want less 'in your face', go for the setup I have - resonated with downpipes. High flow cats in the DPs will ensure you get great flow and sound without the stench of uncombusted gasoline. I also opted for the Valvesonic models, which utilize the stock valve flapper system to quiet the muffler. These valves actually only close seemingly when the 4cyl mode kicks in and occasionally other times if the engine is in 'comfort' so I am not sure if it's worth the extra coin. However I am very, very pleased with this setup, as is everyone else that rides in or drives my vehicle. I receive compliments from the service technicians every time that my car is worked on. I cannot recommend it highly enough. However, it is an expensive setup as the high-flow cats contain precious metals. A cheaper alternative is simply non-resonated with stock downpipes, which in my opinion will give you 60-65% of the sound that I have achieved with downpipes.

Cons - There is an audible low sound in the lower RPMs, not drone per se but you can hear the engine and it is not whisper quiet like the stock setup. Anything after 3k RPM sounds wicked. There is a subtle but noticeable drone/vibration at 60-75mph in 4 cylinder mode only, and a strong vibration between 36-42mph in 4cyl mode. There is another thread on here where madyspop is experimenting with sound-proofing the trunk and it seems to mitigate the drone. The project is still ongoing.

I don't think I hear many pops/bangs but that may be due to the way the interior is insulated. I have not tried strapping a GoPro on the back. RS7 achieves many more of those angry sounds due to the larger turbos, higher compression ratio, and presumably a slightly richer fuel map.

[turbello18]

To the pops and bangs, I do believe that's where the resonated vs non resonated comes in. I just installed the non res valvesonic cat back and I hear a lot of them. My first reaction wow. It's raw! My second reaction was it might be too raw. I've only put 30 miles on it so it's still TBD whether I feel it's too much. These are luxury cars and though I liked that level of disturbing the peace in my rs4 I'm not 100% about it in the s6. If I were to go again and if your on the fence I may go resonated valvesonic.

I've also heard awe is quieter (good?) but not as deep and again raw.

Try to find one in your area to hear in person. No sound clips do any of them justice.


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[chudiddy]

I'm confused as to why you would title this thread "2016 S6 Avant in Sepang" and not post any pictures. Shame on you!! ;)

[pez81]

I'm confused as to why you would title this thread "2016 S6 Avant in Sepang" and not post any pictures. Shame on you!! ;)

Sorry I tried but it wouldn't let me

[pez81]

https://www.instagram.com/p/BCnb-e1u...FVYoKw2DQfpc0/

[pez81]

To the pops and bangs, I do believe that's where the resonated vs non resonated comes in. I just installed the non res valvesonic cat back and I hear a lot of them. My first reaction wow. It's raw! My second reaction was it might be too raw. I've only put 30 miles on it so it's still TBD whether I feel it's too much. These are luxury cars and though I liked that level of disturbing the peace in my rs4 I'm not 100% about it in the s6. If I were to go again and if your on the fence I may go resonated valvesonic.

I've also heard awe is quieter (good?) but not as deep and again raw.

Try to find one in your area to hear in person. No sound clips do any of them justice.


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Thanks mate I think I need to go non resonated now you said pops and bangs. The stock pipes are way to quiet.

[pez81]

I have only seen positive reviews about Milltek products on this forum, at least on this specific subsection (and I share that sentiment).

Ultimate growl will be non-resonated with downpipes. If you want less 'in your face', go for the setup I have - resonated with downpipes. High flow cats in the DPs will ensure you get great flow and sound without the stench of uncombusted gasoline. I also opted for the Valvesonic models, which utilize the stock valve flapper system to quiet the muffler. These valves actually only close seemingly when the 4cyl mode kicks in and occasionally other times if the engine is in 'comfort' so I am not sure if it's worth the extra coin. However I am very, very pleased with this setup, as is everyone else that rides in or drives my vehicle. I receive compliments from the service technicians every time that my car is worked on. I cannot recommend it highly enough. However, it is an expensive setup as the high-flow cats contain precious metals. A cheaper alternative is simply non-resonated with stock downpipes, which in my opinion will give you 60-65% of the sound that I have achieved with downpipes.

Cons - There is an audible low sound in the lower RPMs, not drone per se but you can hear the engine and it is not whisper quiet like the stock setup. Anything after 3k RPM sounds wicked. There is a subtle but noticeable drone/vibration at 60-75mph in 4 cylinder mode only, and a strong vibration between 36-42mph in 4cyl mode. There is another thread on here where madyspop is experimenting with sound-proofing the trunk and it seems to mitigate the drone. The project is still ongoing.

I don't think I hear many pops/bangs but that may be due to the way the interior is insulated. I have not tried strapping a GoPro on the back. RS7 achieves many more of those angry sounds due to the larger turbos, higher compression ratio, and presumably a slightly richer fuel map.

Thanks for the detailed and helpful reply. I asked the dealer about any strange odours they said not that they were aware. Think it might have to be milltek then

[turbello18]

The smell comes from the cat delete. If you go straight down pipes without cats, there's nothing to filter the exhaust. Milltek sells both versions. The with cat version is 2 or 3x the price of the non cat version.


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[pez81]

I have only seen positive reviews about Milltek products on this forum, at least on this specific subsection (and I share that sentiment).

Ultimate growl will be non-resonated with downpipes. If you want less 'in your face', go for the setup I have - resonated with downpipes. High flow cats in the DPs will ensure you get great flow and sound without the stench of uncombusted gasoline. I also opted for the Valvesonic models, which utilize the stock valve flapper system to quiet the muffler. These valves actually only close seemingly when the 4cyl mode kicks in and occasionally other times if the engine is in 'comfort' so I am not sure if it's worth the extra coin. However I am very, very pleased with this setup, as is everyone else that rides in or drives my vehicle. I receive compliments from the service technicians every time that my car is worked on. I cannot recommend it highly enough. However, it is an expensive setup as the high-flow cats contain precious metals. A cheaper alternative is simply non-resonated with stock downpipes, which in my opinion will give you 60-65% of the sound that I have achieved with downpipes.

Cons - There is an audible low sound in the lower RPMs, not drone per se but you can hear the engine and it is not whisper quiet like the stock setup. Anything after 3k RPM sounds wicked. There is a subtle but noticeable drone/vibration at 60-75mph in 4 cylinder mode only, and a strong vibration between 36-42mph in 4cyl mode. There is another thread on here where madyspop is experimenting with sound-proofing the trunk and it seems to mitigate the drone. The project is still ongoing.

I don't think I hear many pops/bangs but that may be due to the way the interior is insulated. I have not tried strapping a GoPro on the back. RS7 achieves many more of those angry sounds due to the larger turbos, higher compression ratio, and presumably a slightly richer fuel map.

I re read your reply about the stock downpipes and non resonated option. I think that might be a great solution for now. I'm getting a tune and some cosmetic changes so any saving tips are most welcome

[hubris]

I re read your reply about the stock downpipes and non resonated option. I think that might be a great solution for now. I'm getting a tune and some cosmetic changes so any saving tips are most welcome

Sure, it's certainly the most affordable and best sounding option for minimal investment. Plus, it will bolt right up to Milltek downpipes down the road if you decide you want to get the full DP setup, however AWE of course may not be cross-compatible. Performance wise, downpipes will offer you another ~50 WHP, or that's what we think anyway. There is currently no public software available for 'stage 2' which is the downpipes (and optionally full exhaust), but ARP will be releasing theirs "soon". See the 'Which would you prefer' thread on this board for more info. However also consider that APR is releasing their own hardware (DP) with the software which will bolt right up to the stock catback. It may be in your interest to wait for their product and just get the DP as there will certainly be a tonal change, although nobody is sure what that will sound like yet.

[pez81]

Sure, it's certainly the most affordable and best sounding option for minimal investment. Plus, it will bolt right up to Milltek downpipes down the road if you decide you want to get the full DP setup, however AWE of course may not be cross-compatible. Performance wise, downpipes will offer you another ~50 WHP, or that's what we think anyway. There is currently no public software available for 'stage 2' which is the downpipes (and optionally full exhaust), but ARP will be releasing theirs "soon". See the 'Which would you prefer' thread on this board for more info. However also consider that APR is releasing their own hardware (DP) with the software which will bolt right up to the stock catback. It may be in your interest to wait for their product and just get the DP as there will certainly be a tonal change, although nobody is sure what that will sound like yet.

Thanks buddy. This has been most helpful. My dealer was pushing the valvesonic ( i don't know why that would be ;-) ) But if thats all it really does then I would rather save the £700 and go for this

Cat-back
Non-resonated (louder) with Cerakote Black tips
SSXAU373
1 x LH Front Pipe Assembly
1 x RH Front Pipe Assembly
1 x Centre Silencer Assembly
1 x LH Non-Resonated Rear Assembly
1 x RH Non-Resonated Rear Assembly
4 x Cerakote Black Tips Quad 100mm GT100

So is that the only difference with the valvesonic it just uses the stock flaps to change the sound. Im not sure i want that anyway.

On another note 200 miles in to my cars life and the exhaust/engine note has changed. it does seem to be a bit louder now maybe the engine has warmed up and relaxed a bit if there is such a thing.

Shame i can't get LC to work, tried everything maybe you need so many miles on it first.

[tonymission]

Not sure if you've looked into the akrapovic exhaust... Dollar for dollar it's probably not the best option but I think it sounds amazing. Silent when you want it to be but absolutely demonic when ripping through gears in sport mode. Very euro supercar like. I like how someone here put it (I believe): if milltek is a butcher knife, akra is a scalpel.


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[hubris]

Thanks buddy. This has been most helpful. My dealer was pushing the valvesonic ( i don't know why that would be ;-) ) But if thats all it really does then I would rather save the £700 and go for this

Cat-back
Non-resonated (louder) with Cerakote Black tips
SSXAU373
1 x LH Front Pipe Assembly
1 x RH Front Pipe Assembly
1 x Centre Silencer Assembly
1 x LH Non-Resonated Rear Assembly
1 x RH Non-Resonated Rear Assembly
4 x Cerakote Black Tips Quad 100mm GT100

So is that the only difference with the valvesonic it just uses the stock flaps to change the sound. Im not sure i want that anyway.

On another note 200 miles in to my cars life and the exhaust/engine note has changed. it does seem to be a bit louder now maybe the engine has warmed up and relaxed a bit if there is such a thing.

Shame i can't get LC to work, tried everything maybe you need so many miles on it first.

I think you will be pleased with that. It seems to be the most popular option, at least starting out, for C7 members here. Yeah I don't think the valves make a ton of difference, at least not if you utilize the stock operation. Some people wire up the valves to work on a control switch. There's another thread going on right now discussing that. You might see more benefit of the valves if you go that route.

Exhaust note does indeed change with mileage. The exhaust gases coat the piping and materials which alters the sound. Mine didn't fully settle in until about 1500 miles.

Tony has a good point. Akrapovic sounds great, but it's somewhere over $8k I believe.

[MadAboutCars]

Mine is definitely louder now than when I first got it (8000km now).

Re the launch control, one trap is to not remember to turn off the engine start/stop feature (light lit above the button).

[pez81]

Mine is definitely louder now than when I first got it (8000km now).

Re the launch control, one trap is to not remember to turn off the engine start/stop feature (light lit above the button).

I did turn it off. Engine was warmed up too. Just goes to 2000

[hubris]

Just wanted to report in and recant my previous statement that my setup doesn't make those extra fun noises we discussed. I had my windows down today for the first time since having the exhaust installed. I actually can hear pops and bangs! With the windows up they just sounded like rumbling noises. These cars are very well insulated!