Akrapovic Link Pipe Set w Cat (SS) for 991.2 CarreraOP Optional partLink pipe set w Cat (SS) was tested and developed together with Slip On Line (Titanium) system. Constructed from high quality stainless steel , this optional addition to the Slip On Line will enhance the sound of the exhaust, and power will be taken to greater heights. Fitted with sporty catalytic converters, installing this option increases the engines performance and adds an aural improvement for all to appreciate. Providing improved