I'm looking for a performance muffler to go with a K&N filter to pick up a little performance and mileage on my 2000 E430. Low internal noise(resonsance) is a must. I can't find anything out there. Do any perfomance mufflers exist for my car???

Thanks, Matt

 

You can use stock resonator and change the muffler.
I have both K&N and Eisenmann available.