Our Centre Section Pipe for the Subaru Impreza Classic GC8 replaces the standard centre section that also includes a restrictive catalytic converter. Our centre section pipe improves exhaust gas flow, increasing power and torque . Features: Manufactured from T304 stainless steel 2.5" bore TIG welded, CNC machined flanges Compatible with standard or aftermarket back box Please note: 1258mm length. Please check length of your current centre section before ordering.