According to the YouTube description, the Ferrari has a system from the company Frequency Intelligent Exhaust, and the new pipes make the high-revving V8 scream. The little jets of flame that come out the back only sweeten the experience.
The video lets you hear these wonderful pipes while the 458 is stationary and on the move. From inside, the sound is surprisingly subdued when the driver doesn't have the throttle against the floor. It seems like you could actually cruise around without needing earplugs but still enjoy the superb noise when desired.