Rev9 3" Downpipe Down Pipe WRX 08-14 STi 08-18 Legacy GT 05-09 Forester XT 09-13, DP-027 100% SUS-304 Stainless Steel with Computerized Mandrel-Bent TIG Weld for Strength and Durability Divided downpipe flange for smoother / better flow Gains10-16 Horse Power and Torque Direct bolt on for MANUAL TRANSMISSION ONLY!