Aftermarket exhaust

4.0 V8 40v biturbo TFSI - 591 bhp
lem
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Aftermarket exhaust

Post by lem » Fri Jun 12, 2020 1:02 pm

Hi all - not sure anyone has, but just checking if anyone has gone the aftermarket exhaust route yet on the C8 and any thoughts?

I'm just about to make my decision on this as I have the prices on both Milltek and Akrapovic, and can actually go somewhere and have it fitted!

Milltek is coming in at approx £3K + VAT fitted
Akrapovic is coming in at approx £6500 + VAT fitted (ouch!)

As I understand, the Milltek is front pipe back (leaving the factory front pipe and box fitted to the car) and bolts on with no cutting involved. Same for the Akrapovic I think

Both will change the exhaust note and volume a bit but have been advised that to replicate the volume of the C7 RS6 I would have to go high flow cat turbo back system which would then require a stage 2 remap, which is something I'm not willing to do at this stage as id like a bit more volume, but nothing too loud, and then there is the warranty issues......
Current:
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Iain
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Re: Aftermarket exhaust

Post by Iain » Fri Jun 12, 2020 1:25 pm

Chop centre section boxes out £200 to see if you think the Millie will be worth the £3k. Worst case scenario - you have a car noisier than before, slightly.
2018 Brabus G63 Widestar
2017 RS6 PE -Nardo, Air, HUD, Pan.....Millie Non Res
2015 RS6 - with Added Milltek
2015 RRS - utter sh1te
2010 X5 4.0D M Sport Every conceivable extra
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2003 Fezza 360 Spider - Airfix kit build quality
2007 M3 - car number 2 in the UK
2006 RS4 Avant
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Re: Aftermarket exhaust

Post by RS6chris! » Sat Jun 13, 2020 8:59 am

Seems the set up for the C8 is more complex then previous models.

GPF filters etc

The Milltek set up seems complicated? It does say you have to cut OEM system to make it fit??
RS6 C8 carbon black(merlin)
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lem
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Re: Aftermarket exhaust

Post by lem » Sat Jun 13, 2020 12:03 pm

Apparently there are two options. One that needs chopping and one that doesn't. Im not keen to be cutting the OEM as I may want to return to stock when I get shot of the car, so would prefer the bolt on version

You are right though, C8 is much more restricted than C7, hence downpipes, high flow cat etc is the option to remove more of the restrictions, which could be an option longer term, but want to take it a step at a time
Current:
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Re: Aftermarket exhaust

Post by RS6chris! » Sat Jun 13, 2020 1:15 pm

Cars making good power on a map on OEM exhaust Too

Air intakes are straight into engine on C8...

I reckon with downpipes etc and a stage two map this cats going to make much more than a C7
RS6 C8 carbon black(merlin)
RS6 C8 launch edition
R8 V10 plus
C7 RS6 PE dynamic pack plus
C7 RS6
Porsche Panamera Turbo
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Golf R32 mk 5
BMW M3 E46
Golf R32 mk 5
Golf GTI mk 5
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Iain
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Re: Aftermarket exhaust

Post by Iain » Mon Jun 15, 2020 9:10 am

What are the differences between the OEM standard and Sports exhaust? Is it internals, less baffles etc or is it all to down to the software?
2018 Brabus G63 Widestar
2017 RS6 PE -Nardo, Air, HUD, Pan.....Millie Non Res
2015 RS6 - with Added Milltek
2015 RRS - utter sh1te
2010 X5 4.0D M Sport Every conceivable extra
2010 X5 4.0D M Sport
2009 R8 V10 Manual
2004 Lambo Gallarado Manual
3 x 997 C4S / C2s
2003 Fezza 360 Spider - Airfix kit build quality
2007 M3 - car number 2 in the UK
2006 RS4 Avant
2000 RS4 MTM Stage 3 - R55 BYE
2001 RS4 - R500 FOR
1990 Dimma Cosworth H20 COS
2003 996 DMS Turbo
multiple 205's Dimmas

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Re: Aftermarket exhaust

Post by 2 5HAN » Mon Jun 15, 2020 4:08 pm

lem wrote:
Fri Jun 12, 2020 1:02 pm
Hi all - not sure anyone has, but just checking if anyone has gone the aftermarket exhaust route yet on the C8 and any thoughts?

I'm just about to make my decision on this as I have the prices on both Milltek and Akrapovic, and can actually go somewhere and have it fitted!

Milltek is coming in at approx £3K + VAT fitted
Akrapovic is coming in at approx £6500 + VAT fitted (ouch!)

As I understand, the Milltek is front pipe back (leaving the factory front pipe and box fitted to the car) and bolts on with no cutting involved. Same for the Akrapovic I think

Both will change the exhaust note and volume a bit but have been advised that to replicate the volume of the C7 RS6 I would have to go high flow cat turbo back system which would then require a stage 2 remap, which is something I'm not willing to do at this stage as id like a bit more volume, but nothing too loud, and then there is the warranty issues......
Hi Lem

Do you mind me asking who is quoting for the works?
I didnt think the Akra was available yet in the UK?

lem
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Re: Aftermarket exhaust

Post by lem » Mon Jun 15, 2020 4:34 pm

Richter Sports have done the quotes. They say Akra they can order in and is available. Not sure on lead times on the Akra but the Milltek is about 2-3 days, however the Black tips are back order until 4th July ish
Current:
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Re: Aftermarket exhaust

Post by RS6chris! » Mon Jun 15, 2020 4:49 pm

Akra will be epic

Just expensive

Sounded lovely on my C7

I prefer that tone
RS6 C8 carbon black(merlin)
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Golf R32 mk 5
BMW M3 E46
Golf R32 mk 5
Golf GTI mk 5
VW Passat 130d 4 motion
VW bora 150pd
Ford Mondeo Ghia X V6
Ford Focus zetec
Rover 214!!

lem
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Re: Aftermarket exhaust

Post by lem » Mon Jun 15, 2020 6:32 pm

Like the idea of the Akra, but its over double price, and to be honest I'm not sure on the tips
akrapovic-audi-rs6-c8-exhaust.jpg
Crap picture but I dont think they look as good as the ones for the C7. Personal opinion, but not sure
Current:
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Re: Aftermarket exhaust

Post by Tadass910 » Mon Jun 15, 2020 7:06 pm

Buy Miltek and forget akra)

lem
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Re: Aftermarket exhaust

Post by lem » Tue Jun 23, 2020 2:40 pm

Milltek on order - they had the exhaust in stock but waiting for a specific clamp to be delivered. Hopefully fitted sometime after the 11th July. Looking forward to seeing how it sounds!
Current:
2024 R8 - Daytona Grey
2023 Mercedes G63 AMG
2022 SQ5 - Grey

Most recent Audi
2020 RS6 Vorsprung - Sebring Black
2017 RS6 Performance - Ascari Blue

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Re: Aftermarket exhaust

Post by Tadass910 » Tue Jun 23, 2020 4:02 pm

lem wrote:
Tue Jun 23, 2020 2:40 pm
Milltek on order - they had the exhaust in stock but waiting for a specific clamp to be delivered. Hopefully fitted sometime after the 11th July. Looking forward to seeing how it sounds!
Good choice) which version you ordered? Resonated or none resonated exhaust?

lem
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Re: Aftermarket exhaust

Post by lem » Tue Jun 23, 2020 6:21 pm

Its not the same format as the C7, there is no 'resonated' or 'non resonated'

Its either particulate filter / OPF/GPF back system which requires OE system to be cut, or front pipe back which doesn't require the OE system to be cut.

I'm having the latter with Black tips as I don't want the OE cut, in case I want to put it back on when I sell the car. I think the option I'm going for may be the slightly quieter one, but Ill wait to see how much of a difference it makes

I was told the C8 wont sound as loud as the C7 with a Milltek unless I also go for wide bore down pipes, hi-flow cats and a stage 2....which is a step to far at the moment because of warranty
Current:
2024 R8 - Daytona Grey
2023 Mercedes G63 AMG
2022 SQ5 - Grey

Most recent Audi
2020 RS6 Vorsprung - Sebring Black
2017 RS6 Performance - Ascari Blue

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Re: Aftermarket exhaust

Post by RS6chris! » Tue Jun 23, 2020 7:46 pm

Yeah but I’d there a difference in noise on the two milltek options?
RS6 C8 carbon black(merlin)
RS6 C8 launch edition
R8 V10 plus
C7 RS6 PE dynamic pack plus
C7 RS6
Porsche Panamera Turbo
C6 RS6 AVANT
RS4 B7
Golf R32 mk 5
BMW M3 E46
Golf R32 mk 5
Golf GTI mk 5
VW Passat 130d 4 motion
VW bora 150pd
Ford Mondeo Ghia X V6
Ford Focus zetec
Rover 214!!

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