Heater Grid Block Delete For 98-07 Dodge Ram 2500/3500 5.9L Cummins. For those living in warm climates where cold starts are not an issue, the OE heater grid can be replaced with S&B's Heater Block Delete, which will provide a 30.91 percent improvement in airflow.
S&B's Heater Block Delete is CNC Machined from 6061 - T6 Aluminum and is built for extreme performance. Because of its simple, trouble free installation, it's a breeze to switch back to your stock heater grid, for engine starting during the cold winter months.
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