[SoloPierre]

Resonator changes the frequency of the sound - Less drone sound. Mufflers makes the car quiet.

I just have resonators on my autox Boxster after the precats and no mufflers at all. My complete exhaust weights just 17lbs including the test pipe section and resonators. It is loud, but not super loud like an uncorked car. I could not daily drive the Boxster due to the heavy drone. Driving the car to the track or autox is bearable since I only do it once or twice a month.

Before my current setup, I had the eBay bypass pipes with no resonators and the eBay muffler. No drone what so ever. I was quite surprised. The only bad thing about the Chinese ebay exhaust stuff is the fit. I had to fab mine a little and make a custom mount to make it fit perfectly. I might be a little picky too....