The Invidia N1 catback system is a more race oriented exhaust setup and features very straight-through, 3 inch piping to relieve back pressure and add power and torque. This system is the race version which does NOT include a resonator and only has one, straight through muffler at the rear of the vehicle. The tip is a burnt blue finish with titanium construction. This will give you an aggressive sound increase and be able to flow well on high powered cars as well as street cars.