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Unique One-Piece Housing
Designed to minize restriction and increase airflow
w/3 Position Selector Switch
This system uses a C
DORMAN 674-731 LEFT SIDE EXHAUST MANIFOLD BATTERY/STARTING/CHARGING Unique One-Piece HousingThe Dorman 674 731 Left Side Exhaust Manifold is a direct replacement for your 2001 2016 GM 6. 6L Duramax. This manifold features a "full bore" design that isn't kinked like the factory manifold on the 2001 2010 models. This makes it a popular upgrade for the earlier trucks as the increased flow will "balance" out the engine helping with throttle response and better overall performance. FEATURES: Direct Fit Upgrade On 2001 2010 Duramax Trucks Replaces
US$ 103.29
US$ 34.95