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Flowmaster Super 44 Series 2.25" Offset In 2.25" Out Universal Chambered Muffler Bypass Valve This part can be used XT281014 BAN14H12 This part can be used as a direct replacement for Bosch part number 0 928 400 779 and 0 928 400 757 making them the perfect solution for Duramax owners who live in warmer climates or use their trucks under heavy load or strenuous driving conditions Deep Aggressive Sound Exhaust Note Flowmaster's Super 44 muffler uses the same Delta Flow® technology found in our larger Super 40 mufflers
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