Fitment Information Ford Focus ST (2013, 2014, 2015, 2016, 2017, 2018) Emissions Compliance This exhaust does not alter, replace, or modify any emissions equipment. Specs & Features Full titanium  3.17" piping diameter 4.53" tip size 1mm Main pipe thickness Silencer included 6mm Flange thickness Only 22lbs Racing Layout - minimal bends and curves allow exhaust gases to escape quickly Dry Race Sound - provides a true race exhaust sound that titanium materials can provide New hardware, springs, a clamp, and gasket will be provided to make this exhaust system ready for the installation Product Description Introducing the Tomei Expreme Ti Titanium Cat-Back Exhaust, the ultimate upgrade for your Ford Focus ST. It's not just an exhaust system; it's a symphony of power and sound. Crafted from titanium, it's the high-performance accessory that turns your car into a roaring work of art. With larger pipes and sleek bends that pay homage to JDM style, it's more than just a performance booster. It's a statement, an expression of your love for speed and style. Imagine the sensation of unleashing its race-inspired exhaust note as you hit the gas. It's a performance piece that not only delivers power but also turns heads wherever you go. Whether you're cruising the streets, making an entrance at car events, or tearing up the track, this exhaust is your ticket to an enhanced driving experience. You might even be tempted to hang it on your living room wall, but trust us, it's much more exhilarating when it's installed on your Focus ST.