The N1 catback system is a more aggressively styled exhaust than the Q300 from Invidia. It features more straight-through, smaller mufflers for a little louder note. It's also a very high flowing setup and will give you plenty of extra power and torque, especially when supported by other performance modifications. The system is a full 3" until it divides into the rear piping, allowing even more flow out the back. This system features a resonator for sound control and dual titanium tips with a burnt blue finish.