2001 - 2016 6.6L GM Duramax LB7 LLY LBZ LMM LML
46-40024 Machined Ports: These manifolds have both the inlet and the outlet ports machined to match the factory gaskets. This allows for maximum...
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01 - 15 6.6L GM Duramax
1043800 304 stainless steel precision cast mounting flanges eliminate exhaust tubing blowouts and ensures correct fitment
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