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2012-2015 Honda Civic SI High Flowing 3" Header Downpipe
High-flowing 3" Header Downpipe, which replaces BOTH OEM catalytic converters and is available catless or with a single High Flow Cat. Unleash the full power of your big displacement K engine! Features: 304 stainless steel 3-inch piping Thick flanges of 3/8" Braided flex section made of pr...
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