AVOTurboworld's Gen 3 header back full exhaust system for the Outback 3.6r 2016+ offers improved flow and a deep, smooth sound. The twin mufflers are constructed fully of stainless steel with 63mm (2.5") piping from the y-pipe. The dual mufflers give a great sound out the rear with the AVO 3" downward pointing adjustable exhaust tips. The front section of the header back is 2 1/2" with a resonator, which then runs into a y-section that is twin 2 1/2". The high-flow design is rated at around 84 dB, making it a good choice for noise concious performance-oriented customers. The AVO header back has a tapered flange at the front so that it can fit a standard OEM front pipe with a donut gasket setup. This will ensure the flex in the system still operates as it was intended to from factory. The Y-Pipe has an adjustable coupling with a clamp to allow for ease of fitment.