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BBK high-flow X-pipe for 2011–2017 Ford Mustang 3.7L V6 replaces the factory mid-pipe with 2.5" mandrel-bent tubing and a BBK center X section to improve exhaust extraction. This full catted assembly includes high-flow catalytic converters, preserves factory O2 sensor placement, and bolts on to stock headers or compatible aftermarket shorty exhausts. Verify local emissions legality before installation.
BBK 11-14 Mustang 3.7 V6 High Flow X Pipe With Catalytic Converters - 2-1/2
