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Product DetailMore Information
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Banks Ram-Air® Intake System GM Duramax LMM
The Banks Ram-Air Intake System delivers exceptional airflow and air density. Its large lifetime air filter requires fewer cleanings than competitive filters. With its giant outlet, streamlined components and enclosed cold-air box that keeps hot engine air out of the intake, the Ram-Air flows up to 66% better than stock. Improves power and MPG; lowers EGTs and reduces black smoke. Banks' unique 5" bellows accommodates engine movement, preventing component damage and prolonging service life. Designed to not cause fault or error codes; lifetime warranty on filter element.
Unlike our competitors, Banks doesn't just build-and-ship. Our Ram-Airs are triple validated before the name "Banks" is stamped on. We test; they don't. That's the Banks difference!
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It’s all about airflow. That’s been the unofficial slogan at Banks since day one. Airflow is power. The more air you flow through your engine, the more oxygen is available for burning fuel. That means greater, more efficient combustion—and more power. How do you get more oxygen to the engine? You need to remove airflow restrictions. And if the air is as cool as possible, so much the better: colder air is denser and more oxygen-rich.
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Superior Design.
The stock system is highly restrictive. The cramped outlet has tight bends, the filter design is inefficient with minimal filtering area, and the air that it does draw in is warmer and less dense. The Banks Ram-Air Intake System is “clean-sheet” engineered to minimize restriction, maximize flow and filter area, and draw cooler, denser air from outside the engine compartment. |
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Superior Performance.
There’s a smokescreen of inflated power claims out there. But at Banks, we deal in facts, not fiction. Banks’ standards are rigorous, and all testing is conducted under exacting conditions with documented results. Who needs hype when you’ve got the truth? |
Banks out-flows & out-performs ’em all!
In a side-by-side comparison of enclosed air intake systems, Banks out-flows them all by as much as 22%! |
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Banks Ram-Air® |
Others |
Outflows stock up to 62% |
Not comparable |
With tuner at top level, adds up to +39 hp & +69 lb-ft over stock intake |
On the same truck, Volant produced less power
(-6 hp) than stock intake |
Largest filter area = fewer filter cleanings & more sustained performance |
Smaller filter area = frequent filter cleanings & limited performance |
8-ply filter traps the most dirt & debris |
Inferior 4-ply (K&N) & 5-ply (Volant & AIRAID) filters offer far less protection |
Cold air makes power, increases fuel economy & reduces smoke |
Warmer air
does not compare |
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Superior Quality.
The Banks Ram-Air Intake System is engineered for long-lasting performance, tough-as-nails durability and factory reliability. For example, our design includes bellows, which allows for engine movement, protecting the turbo and promoting longevity. |
Designed, developed & tested by
world-class automotive engineers.
The most durable and reliable cold-air intake system on the market, Banks Ram-Air Intake System will out-live your diesel! |
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Banks Ram-Air® |
Others |
Giant 7-1/8" filter outlet + smooth-radius, large-diameter streamlined components optimize airflow & power |
Smaller filter outlet, sharp bends & chokepoints restrict airflow & power |
Enclosed, contoured housing keeps out warm, power-robbing engine air; flows cooler, denser air to engine for more powerl |
Draws-in warmer under-hood engine air, which kills power |
Exclusive! Large-diameter bellows accommodates engine
movement for reliable service life |
Without bellows, engine movement causes components to separate, or rub & wear out, allowing dirt/particles into engine & turbo |
Designed to not cause fault
or error codes |
In tests, AFE & K&N caused “check engine” codes |
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Superior Reputation.
For decades, Banks has been winning races and championships, and setting world records. That gives us a tremendous advantage over our competitors when it comes to building winning power for the street. |
5 decades of engineering expertise!
Banks has provided engineering expertise to the
“Who’s Who” of high performance, including Cummins, Bosch, GMC & Holset Turbochargers. |
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Gale Banks Engineering |
Others |
Building Ram-Air systems since the ‘50s |
Late-comers to diesel |
Banks’ Cummins Sidewinder® Dakota, World’s Fastest Pickup, 222 mph!
Banks Sidewinder D-Max Type-R, world’s first diesel-powered roadrace pickup
Banks-Donahoe F-250 super-duty Power Stroke, 2-time Class-8 Mojave-desert winner |
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Developed on flowbenches. Tested in racing. Now available for your truck |
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