GM 12637647 LML Duramax Diesel Driver Side Exhaust Manifold (Will Fit 01-15)
This is the new style exhaust manifold that GM has introduced for the new body style pickups. This manifold is now the factory unit on all LML trucks, but makes a great upgrade for all the 01-10 Duramax owners. This new manifold will flow better than the original OEM unit due to the reduced pinch area near steering shaft. This will greatly increase flow characteristics over the original unit and makes a great alternative to higher priced aftermarket manifolds.
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