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Improve airflow, performance, and reliability on your 2001–2016 GM 6.6L Duramax with MFM’s Stainless Steel Performance Exhaust Manifold Kit. Engineered to outperform restrictive stock manifolds, MFM’s manifolds provide increased exhaust flow, lower drive pressure, and faster turbo spool-up for a noticeable improvement in both power and efficiency. Built from durable stainless steel, these manifolds deliver long-term strength and heat resistance under the harshest towing and performance conditions.
MFM’s designs this kit to maximize airflow with up to 55 percent more flow over OEM manifolds, helping to reduce EGTs and maintain reliable performance under load. Each kit includes both driver and passenger manifolds, premium gaskets, and upgraded hardware for a straightforward installation. Whether towing, daily driving, or upgrading performance, MFM’s delivers a stronger, cooler-running Duramax exhaust system.
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