Had a Milltek Cup (non resonated) exhaust installed today. It sounds good on full throttle but is way to loud for my taste on low rpms. Feels like the whole car is shivering between 1000 - 4000rpm.

Anyone know if this is "normal"? Pipes are 2,75".

I will bring the car to a shop that only deals with exhausts and see if there is a solution to get it a little more quiet on low rpm and to get rid of the drone.

If you have a tip on how to get it more quiet please tell.

 

Can you post some audio of your car at idle, under throttle and on the highway?

maybe add a resonator back in.....?

 

Would love to hear some audio / video on this

 

Stock downpipes?

 

Yes stock downpipes.
I spoke with a guy that works at the tuning firm that are head agent for Milltek here in Sweden and he started by laughing a bit when I told him my problem since I wasnt the first one.
Apparently there used to be three version for the Panamera. One that is "resonated" with a mid resonator assembly (replaces stock) and resonated mufflers. That one is just a bit louder than stock. Then there where "sport" which where the same parts except the mid resonator. This "sport" version is not around anymore (and Milltek are phasing out the other versions for the Panamera aswell).
And, last, the one that I have "Cup" which is just straight pipes from the cat when the valve in the muffler is open (above 2000rpm or with Sport Plus pressed). When the valve is closed the exhaust gas is forced in to the muffler and it lowers the sound a bit on idling.

So, I put two resonated mufflers on order and hopefully that will give a sound level between 1000 - 3000rpm that is possible to live with.
Till I receive the new mufflers the cars is garaged

 

Any chance you could upload some audio?

 

When I get the car out and will go to the shop for install of the new mufflers I can take before and after sound clips.

 

Post some pics of the system.