has anyone deleted their resonator and replaced with either an x-pipe or a straight pipe. I have deleted mine and it sounds reasonble with some rumbling sounds however still quite not satisfied, anybody with the same experience?

 

We have a resonator bypass pipe that is very popular, while you won't get the same result as going to better cats, it's a relatively inexpensive solution to more sound and power.

http://fabspeed.com/panamera_7.html

If you want REAL results I will set you up with a set of racing cats

http://fabspeed.com/panamera_6.html

That's where the real gains are on the PTT cars.