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The Invidia downpipe-to-exhaust adapter adapts a 3" downpipe to a 2.5" exhaust connection for 2008-and-up Subaru WRX/STi applications. It lets builders and tuners mate a larger downpipe to a smaller cat-back without cutting unknown lengths, providing a straightforward plumbing solution when pairing aftermarket and factory exhaust components.
Invidia 08+ Subaru WRX/STi 3in Downpipe to 2.5in Exhaust Adapter
