Link pipe set (SS) was tested and developed together with Slip-On Race Line (Titanium) system.To take the Slip-On Race Line (Titanium) to the next level of its tuning potential, the Link Pipe Set w Cat (SS) is a high-flow set of link pipes with 300 cpsi sport catalytic converters to provide increased performance and add a soundtrack that is truly enthralling. Made from high-quality stainless steel, the addition of these pipes makes remapping the ECU mandatory to get the full potential from the system. With this pairing the sound becomes not just captivating to listen to, but one that gives other senses a thorough workout. The symphonic aural experience gives the engine a broader spectrum of sound, letting the occupants of the car fully enjoy the sporty character of the engine through the exhaust tones.When installing Akrapovic aftermarket optional link pipes with sports catalytic converters, which are developed for use on closed tracks only, remapping the ECU is mandatory. When installing Akrapovic aftermarket exhaust system that was developed for use on closed tracks, we recommend remapping the ECU in order to prevent potential "Check engine light" warning signals. This system does not fit on GTS model. This system fits also on vehicles equipped with Otto particulate filter (OPF). THIS PRODUCT DOES NOT MEET EMISSION COMPLIANCE REQUIREMENTS FOR STREET OR HIGHWAY USE.