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Gateway Online Parts -->Genuine GM Exhaust Muffler Kit 84578423Product Description LT1 Performance Exhaust NOTE: Active Noise Cancellation is included for vehicles with Bose(R) stereo system.SpecificationsBrandGMManufacturer Part Number84578423SKU84578423ProductGenuine GM Exhaust Muffler Kit 84578423Replaces23470001, 84028865WARNING: May cause cancer and reproductive harm. See www.P65Warnings.ca.gov for more info.About Us Here at Gateway Online Parts you will find the best deals online when buyi...

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