Fitment Information Subaru WRX Sedan (2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021) Subaru WRX STi Sedan (2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021)  Emissions Compliance This exhaust does not alter, replace, or modify any emissions equipment. Specs & Features Full titanium construction for optimal weight reduction 80mm piping diameter for improved exhaust flow 115mm tip diameter for an aggressive look Exceptionally lightweight compared to OEM and competitive aftermarket systems Enhances horsepower and torque output Minimizes turbo lag for faster throttle response Generates a race-inspired exhaust sound Aesthetically pleasing appearance that turns heads Comes with new gaskets and installation hardware for a hassle-free setup Product Description Struggling to choose between displaying this masterpiece in your living room or on your Subaru? We understand, and we fully support your decision. Introducing the Tomei Expreme Ti Titanium Cat-Back Exhaust System – the perfect blend of style, performance, and lightweight construction. Crafted from full titanium, this exhaust system offers significant weight savings compared to OEM and other aftermarket alternatives. The 80mm piping diameter, combined with smooth bends and eye-catching JDM-inspired pie cuts, delivers increased horsepower, torque, and a thrilling race-inspired exhaust note. It's an excellent investment for daily drivers, weekend show cars, or dedicated race vehicles, adding style, value, and performance.