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These Cusco diffuser brackets adapt the 2006 STI diffuser to 2005-and-earlier Impreza STI rear valances, providing the necessary mounting interface to use the newer diffuser on older models. Installation requires the specified companion part 673 487 A, which must be used to complete the fitment. The brackets are a targeted accessory for owners fitting a 2006 STI diffuser to earlier STI bodies.
Cusco DIFFUSER BracketS OEM 06 STi diffuser on 05 older STi Impreza ***Must use 673 487 A
