I've had the FRPP exhaust for a few weeks now and I love it. While there is not a drone per se, you can definitely tell there is a post-stock exhaust on the car when highway cruising. Make no mistake. You do hear this exhaust in the cabin, especially when using the throttle. If you think it's some magical solution that is loud when you want it to be and 7-series quiet while cruising, you'll be disappointed. It's not unpleasant though. It's more of it just being different from the stock exhaust, which is displeasingly quiet from the factory on our cars. It's the exhaust our cars should have come with.