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Do you want to increase the performance and sound of your Duramax and still maintain COMPLETE 50-state emissions compliance
The Full Progressive Leaf Pack replaces the entire factory leaf spring configuration
but you can expect a 1" rear high stance when coupled with a 2
Some of the electronic boxes available today can actually crack your injectors
Its been proven time and again that the factory Holset HE351VE turbo does not deliver sufficient airflow for even a stock powered 6
Hypertech Speedometer Calibrator Module 03-05 6.0L Ford Powerstroke AFE-49-42044-P Do you want to increaseGet accurate speedometer readouts and proper shifts with the Hypertech Speedometer Calibrator. Speedometer Calibrator Hypertech's Speedometer Calibrator can correct the speedometer and odometer for tires up to 54 inches (depending on the application), and or non stock rear gear ratios. This new device is engineered for consumers that want the speedometer recalibration functions of the Max Energy Programmer without the additional expense of the other
