Banks Power Ram-Air Intake System for 2004-2005 Chevy and GMC 2500/3500 Duramax LLY - Part #42135

Gain up to +39 hp/+69 lb-ft. Reduces exhaust gas temps (EGTs) and smoke. Outflows stock and competitors up to 35 percent. 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. Key Features: Enclosed housing keeps out hot, power-robbing engine air. Horsepower gain up to +39 hp and +69 lb-ft of torque. 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 Air Filter Element Banks Ram-Air, Oiled Filter, Cold Air Intake System for 2004.5-2005 Chevy/GMC 2500/3500 6.6L Duramax, LLY US Patent # 7,254,477

• Gain up to +39hp/+69lb-ft, 35% Less Restrictive, Lowers EGT and soot output
• 5-Year Limited Warranty

The Banks Power Ram-Air Intake System for 2004-2005 Chevy and GMC 2500/3500 Duramax LLY enhances engine performance by providing a high-flow, enclosed cold-air system that delivers cooler, denser outside air directly to your engine. This design increases horsepower by up to +39 HP and torque by +69 lb-ft, significantly outflowing stock and competitive intakes by up to 35%. The system's enclosed housing keeps out hot underhood air, reducing exhaust gas temperatures (EGTs) and smoke, which contributes to more efficient combustion and extended component life. Constructed with a giant, high-flow filter housed in a cold-air box, this intake maximizes airflow while requiring fewer cleanings and offering longer service intervals. The inclusion of bellows accommodates engine movement, preventing damage and ensuring durability over time, making it a reliable upgrade for heavy-duty applications. The Banks Ram-Air system is meticulously tested through flow simulation, flowbench validation, dyno, and real-world vehicle testing, ensuring optimal performance and compliance with EPA standards. It is compatible with existing vehicle electronics without causing fault codes, providing a seamless upgrade for serious truck enthusiasts and professionals alike.

Features:

• Gain up to +39 HP and +69 lb-ft of torque for enhanced engine power

• Enclosed cold-air housing prevents intake of hot, power-robbing engine air

• Outflows stock and competitors up to 35%, improving airflow and performance

• Giant high-flow filter maximizes filtration capacity and longevity

• Accommodates engine movement with integrated bellows, preventing damage

• Reduces exhaust gas temperatures (EGTs) and smoke output for cleaner emissions

• Designed for durability and extended service life with fewer cleanings

• Complies with EPA standards and is CARB exempt (D-161-146)

• Backed by a 5-year limited warranty for peace of mind

Fits
Chevrolet Silverado 2500 HD Base 2004
Chevrolet Silverado 2500 HD Base 2005
Chevrolet Silverado 2500 HD LS 2004
Chevrolet Silverado 2500 HD LS 2005
Chevrolet Silverado 2500 HD LT 2004
Chevrolet Silverado 2500 HD LT 2005
Chevrolet Silverado 2500 HD WT 2004
Chevrolet Silverado 2500 HD WT 2005
Chevrolet Silverado 3500 Base 2004
Chevrolet Silverado 3500 Base 2005
Chevrolet Silverado 3500 LS 2004
Chevrolet Silverado 3500 LS 2005
Chevrolet Silverado 3500 LT 2004
Chevrolet Silverado 3500 LT 2005
Chevrolet Silverado 3500 WT 2004
GMC Sierra 2500 HD Base 2004
GMC Sierra 2500 HD Base 2005
GMC Sierra 2500 HD SLE 2004
GMC Sierra 2500 HD SLE 2005
GMC Sierra 2500 HD SLT 2004
GMC Sierra 2500 HD SLT 2005
GMC Sierra 2500 HD WT 2004
GMC Sierra 2500 HD WT 2005
GMC Sierra 3500 Base 2004
GMC Sierra 3500 Base 2005
GMC Sierra 3500 SLE 2004
GMC Sierra 3500 SLE 2005
GMC Sierra 3500 SLT 2004
GMC Sierra 3500 SLT 2005
GMC Sierra 3500 WT 2004
GMC Sierra 3500 WT 2005