Fits: 2021 > UP In the diagram above, a Solid Line indicates that the connected items are required for initial fitment and a Broken Line indicates that both items will connect together or will connect with the O.E. corresponding item at time of initial fitment. Arrow Part Number - 72175PD Note - For correct initial fitment, this ARROW Racing Link Pipe [No Cat] is required to allow a Race-Tech #72624 series silencer to be selected Or alternatively, the O.E. Exhaust Header Collector can be retained. Made from INOX Stainless Steel [AISI 304 grade] for a durable light weight item that allows performance gains. Specifications for LINK-PIPE - 72175PD Features Details Link Pipe material Stainless steel Junction (inlet) diameter (mm) xx.x Junction (outlet) diameter (mm) 54.0 Sensor plug provision No Weight (Kg) 0.50