Stock intake manifold vs. Banks Big Hoss
Gale Banks compares the stock Duramax intake manifold to the Banks Big Hoss manifold. The stock manifold has several design flaws that restrict airflow, including sharp bends, small passages, and restrictive chambers. The Banks Big Hoss manifold addresses these limitations with a more efficient design, larger passages, and smoother airflow paths. This improved airflow allows for higher engine performance and efficiency.