The titanium exhaust is style like the Invidia N1 systems but are completely constructed of titanium. This system is ultra light and saves a large amount of weight when replaceing the factory exhaust. Not only does it save more weight over a traditional steel system, it also features an 80mm piping diameter which is slightly larger than the standard 3" exhausts for Subaru. This will allow for better power overall. This unit is made to perform in every way.