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Factory oil cooler worn
Momentum HD intakes are designed with fewer parts for a quick and simply installation
This transmission tuning will allow for the torque converter to be applied in second gear (while in tow haul-request otherwise if you want it for more than just tow haul)
they are 100% rebuildable if the need ever arose
Smoother exit airflow
K&N 57-3034 Cold Air Intake 01-04 GM 6.6L Duramax AFE-53-10003R Factory oil cooler wornReplacing the restrictive, stock airbox on your 2001 2004 Duramax is probably the easiest upgrade you can do to increase power, throttle response, and fuel economy. Why is the stock airbox so restrictive you may ask? The physical size and media of the air filter limits the amount of airflow that can physically move through it and to the turbo. A high density polyethylene (HDPE) rotationally molded tube helps increase the volume of airflow to your
