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Description
Glacier Diesel Power Mega-Flo Grid Heater & Air-Boss Plenum Package 13-23 Ram 6.7L CumminsSay goodbye to hard starts and restricted airflow with the Glacier Diesel Power Mega Flo Grid Heater and Air Boss 67 Plenum Package for your 20132023 Ram 6. 7L Cummins. When youre 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
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 2013–2023 Ram 6.7L Cummins.
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.
- Standard Duty Single Element heater, ideal for those in milder climates who need occasional cold-start support.
- Or go all-in with the Heavy Duty Dual Element version, perfect for extreme cold environments and northern climates where dependability is everything.
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.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 28 reviews
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Product Reviews
★★★★★ 5
Love it!
Size: XX-Large, Color: Lavender/White Stripe
I am a cheapskate and try hard to find bargains, but i have no problem with paying this price for a quality piece of clothing! Loving the fit and especially the lavender color. Very classy wearing it fully buttoned or open collared. Looks and feels great!! I like this so much I bought the Aqua stripe and green stripe also!
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Reviewed in the United States on April 24, 2026
★★★★★ 4
Very solid option for comfort but the pattern of the shirt I received was off-putting
Size: Small, Color: Grey White Stripe
The shirt itself is great, sizing is spot on with an athletic tapered fit which I always prefer in a polo. The material is classic maelreg cotton feeling without the heaviness and water holding of typical cotton shirts. You can run in these polos, workout, go out to lunch or dinner, or simply sleep in these they are so comfortable. It's the patterns offered that made me return this and another I tried out. Colors are spot on with descriptions but the patters are small enough to play tricks on eyes, I received complaints from both my wife and daughter (separately) about the pattern hurting their eyes hence the 4 star instead of 5. Others may love the patter but know that it isn't as universally pleasing as more other shirts offered by this brand
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Reviewed in the United States on April 15, 2026
★★★★★ 5
Good
Size: Medium, Color: Navy Stripe
Good, soft material
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Reviewed in the United States on May 22, 2026
★★★★★ 5
Comfortable, and good quality
Size: X-Large, Color: Cobalt Stripe
Nice quality for the $
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Reviewed in the United States on April 21, 2026
★★★★★ 5
Looks decent, doesn’t cook me in summer
Size: Medium, Color: Grey White Stripe
Bought this mainly as another golf shirt and wasn’t expecting much. Material is lightweight and comfortable enough during warmer days. Fit was pretty close to expected sizing.
Sometimes inexpensive golf shirts end up feeling stiff or cheap after washing. This one has held up fine so far. Good everyday option.
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Reviewed in the United States on May 26, 2026