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The MagnaFlow Competition Series cat-back system for 2011–2018 Subaru 2.0L and 2.5L models uses 3" mandrel-bent main piping and straight-through mufflers to free flow exhaust. It terminates in a quad-split rear exit with 4" polished double-wall tips, is made from stainless steel, and is a direct-fit replacement engineered for aggressive exterior sound, reduced drone on some applications, and CNC precision build.
MagnaFlow SYS Cat-Back 15-17 Subaru WRX Sti 2.5L Polished 3in Tips
