MtlS7

Hello Guy's
I have 2017 S7 and I love the car. Its just that it is too quiet. I wanted to see what you guys recommend. I also don't want it to sound crazy loud as I do a lot of business calls in my car. I would guess the best of both worlds.
Thank you
Sam

jkwelsh

Remove the two front resonators and replace with straight through pipes.

Remove the centre ("suitcase") resonator and replace with an an X-Pipe.

Any decent exhaust shop will be able to fabricate for you.

Completely transforms the sound of the V8. In a good way!

MtlS7

You the man ! Thank you
Will I lose power on my S7 doing this ?
Sio

jkwelsh

No!

gema7

How much did such a set up cost you?

Grisho

There is a high chance that doing this will cause horrible drone in the low revs that you will hear all the time and the only way to get rid of it is to put everything back or get rid of the whole exhaust. Or it may be perfect, the best way to know is to find another S7 with the exact same setup and ask the guy to ride in it to hear for yourself. Then go to the same shop and ask them to do the exact same thing. Keep in mind that exhaust design is incredibly complex and Audi spent likely millions of $ to do it this way. Compare that to an exhaust shop that just cuts and installs stuff...
Also your ECU is tuned to this exhaust so changing it will for sure make engine work not the way it was programmed to work so an ECU tune to the new exhaust is highly recommended (required in my mind).

It also all depends on how much you care about perfection: I do a lot so I will never get my exhaust done by an exhaust shop, likely I will get something from Capristo, Akrapovic or the like.

jkwelsh

If you care so much about perfection and the millions of $$ Audi have spent "perfecting" their exhaust, why are you saying your going to change to an aftermarket one?

You clearly don't have a clue what your talking about.....

Grisho

Very simply because I bought the car with the exhaust already done by an "exhaust shop" and it is horrible. If you read at least the simplest book about exhaust design (I'd highly recommend Scientific Design of Exhaust and Intake Systems, P.H. Smith) you will understand that statements like the the one you made lack quite a bit of intelligence...