Glacier Diesel Power Mega-Flo Grid Heater & Air-Boss Plenum 07.5-23 Ram 6.7L Cummins Cab & Chassis

Say goodbye to hard starts and restricted airflow with the Glacier Diesel Power Mega-Flo Grid Heater and Air-Boss 67 Plenum Package for your 2007.5–2023 Dodge/Ram 6.7L Cummins Cab & Chassis.

When you’re dealing with frigid morning starts or chasing cooler EGTs and better throttle response, this setup has you covered with two heater options and the high-flow Air-Boss plenum upgrade in one streamlined package.

Choose from either the SD or HD heaters, both heaters are fully emissions-compatible and deliver class-leading heat output for consistent, reliable starts in any weather.

Paired with the Air-Boss 67 Grid Heater Delete, this package takes your intake airflow to the next level. If your EGTs are creeping too high or you're not getting the full benefit of your fueling upgrades, the Air-Boss 67 is the answer. It's not just a flat plate delete, it’s a billet aluminum, internally elevated plenum cover that’s precision machined to flow maximum air, especially to cylinders 4, 5, and 6 where airflow typically suffers. Glacier engineered this plenum to gain a full .220" of internal height, all while retaining the use of factory mounting hardware. The result? Significantly increased airflow, better fuel utilization, and cooler exhaust temps without major head work. Compatible with all stock-style intake manifolds, the Air-Boss 67 is the most effective grid heater delete upgrade available short of milling your intake plenum.

If you're after cold-start confidence, serious airflow gains, or both, this package delivers.