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Speed School Podcast with Gale Banks

Banks Ram-Air®

Starting at $449.00

Select Options
Banks Ram-Air®

Starting at $449.00

Select Options
Components of the Banks Ram-Air intake for 2006-2007 Duramax LLY
Components in the Banks Ram-Air intake for 2004-2005 6.6L Duramax LLY
Components of the Banks Ram-Air intake for 2006-2007 Duramax LLY
Example filters and pre filters
Banks Ram-Air intake for 2006-2007 Duramax LLY being installed in truck
Banks Ram-Air intake for 2006-2007 Duramax LLY installed
Detail photo of the Banks intake tube near a MAF sensor
Components in the Banks Ram-Air intake for 2004-2005 6.6L Duramax LLY
Components of the Banks Ram-Air intake for 2006-2007 Duramax LLY
Example filters and pre filters
Banks Ram-Air intake for 2006-2007 Duramax LLY being installed in truck
Banks Ram-Air intake for 2006-2007 Duramax LLY installed
Components in the Banks Ram-Air intake for 2004-2005 6.6L Duramax LLY
Example filters and pre filters
Banks Ram-Air intake for 2004-2005 6.6L Duramax LLY being installed
Banks Ram-Air intake for 2004-2005 6.6L Duramax LLY installed

Banks Ram-Air®

Gain up to +39hp/+69lb-ft, 35% Less Restrictive
Lowers EGT and soot output
For 2004.5-2005 CHEVY/GMC 2500/3500 6.6L DURAMAX, LLY
Limited Inventory
MSRP $498.89

$449.00

Choose Your Banks Ram-Air®

$449.00
Oiled Filter Set
$449.00
Dry Filter Set

Add Ons

No add-ons selected
42138 42138-D Oiled and Dry Filters
Air Filter Element
Add a spare Oiled Filter to your order
+$119.00
Banks PreFilter
Pre-Filter
For Filter PN# 42138 & 42138-D
Protects from debris, mud, and fine dust
+$44.08
Free Shipping on orders over $250 (48 Contiguous US)*

Gain up to +39 hp/+69 lb-ft. Reduces exhaust gas temps (EGTs) and smoke. Outflows stock and competitors up to 35 percent. Optional Super-Scoop rams cold air for more power.

US Patent #10,138,851 B2

50 State Compliant

CARB E.O. D-161-146


Fitment Note

Fits 2004.5-2005 Chevy/GMC 2500/3500 6.6L Duramax, LLY Only


2004 was a split year between LB7 and LLY engines. Check which engine you have. Locate the 8th digit of the VIN. 1 is LB7 and 2 is LLY

Optional Super-Scoop (Chevy 42168/GMC 42169) rams cold air for more power.


Key Features

  • Enclosed housing keeps out hot, power-robbing engine air
  • Horsepower gain up to +39 hp and +69 lb-ft of torque
  • Optional Super-Scoop rams cold air for more power
  • Extends service life and requires fewer cleanings
  • Inhales cooler outside air for more power & MPG
  • Reduces exhaust gas temps (EGTs) and smoke
  • Outflows stock and competitors up to 35%
  • Giant filter maximizes high-flow filtration
  • Accommodates engine movement
  • Prevents component damage
  • Helps engine run cooler
  • 5-year Limited Warranty
  • OILED or DRY Air Filter Element


Specifications

Passes the test. Again and again.  
Others build and ship without testing. Not Banks. Our Ram-Air Intakes start out as CAD software prototypes and are put through flow simulations. The design is refined until the simulation shows optimal performance. Then a hardware prototype is made and the design is validated on a flowbench. After that comes dyno testing and on-vehicle testing. It takes a superior design to pass all those tests!

Filter on a stick: a joke that’s not funny.  
A filter on a stick is a bad joke. It’s wide-open to hot, power-robbing underhood engine air. Ram-Air houses a giant filter in an enclosed cold-air box, which inhales cool, dense outside air—more than Banks’ competitors and up to  35%  more than stock—for more power (up to  +39 hp/+69 lb-ft  , with tuner). More mileage, lower EGTs and less smoke, too. And it’s designed to not cause fault or error codes.

Bellows, too? Very exclusive.  
Banks Ram-Air is the only aftermarket intake with bellows. This accommodates engine movement and prevents component damage for longer service life. The optional high-flow Super-Scoop is another Banks exclusive!



Questions? Contact Support

All 8 Intakes Perform worse than Banks!

Air density testing chart comparing on-highway temperatures of Banks Ram-Air® Intake, Bullydog, Airaid, AFE Stage I & II, True Flow XDI, Volant & AEM Brute Force vs. stock

7 out of 8 “cold air” systems actually increase temperatures above stock levels at the turbo inlet!

Chart comparing on-highway air density gain or loss of Banks Ram-Air® Intake, Bullydog, Airaid, AFE Stage I & II, True Flow XDI, Volant & AEM Brute Force vs. stock

It’s good to be dense, all right. Check out our density ad for an informative look at intake airflow, air temperature and air density, and how they all come together in the Banks Ram-Air Intake.

Testing so good, it’s patented! Banks sets uncompromisingly high standards for testing. In fact, we were awarded an Engine Performance Evaluation patent from the United States Patent and Trademark Office. Check it out: Engine Performance Evaluation: US Patent # 7,254,477

Cold, high-pressure ram-air flowing through Banks Ram-Air® Intake with optional Super-Scoop®
line drawing diagram showing beneficial airflow with the Banks Ram-Air system compared to stock

Note: This illustration shows a stock LLY intake so yours may not be identical.


Overview Summary

We measured each intake’s effect on air density at the turbo compressor inlet. Intake temperatures will generally be higher than ambient conditions, but the more the system can duct cool air to the filter and preserve the cool temperature as the air is ducted to the turbo, the higher the air density will be. In addition, there will commonly be a pressure drop as air travels through the filter and the ducting due to any restriction that is introduced. If the design of the system can minimize the restriction and the pressure loss, air density will be preserved.

Test Setup

A 2006 Chevrolet 2500HD, 4 wheel drive, with a crew cab, six foot bed and automatic transmission was used as the test vehicle. A data acquisition system was used to measure vehicle speed via GPS, along with multiple temperature thermistors and extremely accurate pressure transducers. The total vehicle weight was approximately 19,000 lbs. Tests were run in 2WD.


Testing was conducted on a moderate hill on the northbound CA-57 in the city of Pomona. Speed was maintained at 45 MPH until the vehicle was adjacent to a pre-determined start point on the road. At that point, the accelerator was fully depressed and the vehicle was allowed to accelerate while climbing the hill. Test data was observed at the same vehicle speed in all cases, with the engine at 2800 RPM, the point of peak engine power. This data point occurred between 60 and 90 seconds into the run—sufficient time to allow the engine to reach a stabilized operating condition.

Bottom Line

Why on earth would anyone pay money for a product that kills power and mileage? It’s all about density — and Banks Ram-Air delivers.


Filter options

NEW FILTER OPTIONS! Choose from the traditional red, oiled filter or the all-new black, dry filter. Plus, you can even get an extra layer of filtration protection by adding a pre-filter to your order.

free test report

Here's the TEST REPORT for your vehicle!
View it right now online »