Find Parts For Your Truck
Shopping for
2005 Chevrolet 6.6L Duramax LLY
SKU #: AFE-48-34137 MPN #: 48-34137

AFE Twisted Steel Headers / Up-Pipes / Down Pipe Kit 15.5-16 GM 6.6L Duramax LML

$2,442.00
Get 2442 points in loyalty rewards
Back-order

Please Note: This product is currently Back-Ordered. Please be aware that there may be a delay in shipping.

Description
Massively open the exhaust side of your LML's engine with the AFE Twisted Steel Headers, Up-Pipes, and Downpipe package. This kit features heavy duty .120 wall fabricated style headers that not only look good, but they also increase exhaust flow for quicker turbo spool up and lower EGT's. The tube lengths and mitered collectors are optimized for true pulse control technology which improves flow and performance across the power band. Two EGT ports are provided in this kit. One in the driver side manifold and an additional M14x1.5 port in the downpipe for installation of sensors, gauges, or testing equipment. The up-pipes feature heavy duty flanges and 4" flex tubes with internal interlock liners all while retaining the factory EGR system. Just like the manifolds, the up-pipes are constructed from 304 stainless steel mandrel bent tubes with a brushed finish. The downpipe or turbo direct pipe utilizes a 3 bolt exhaust flange connection and is a true bolt on downpipe requiring no cutting, drilling, or modifications for installation.

Massively open the exhaust side of your LML's engine with the AFE Twisted Steel Headers, Up-Pipes, and Downpipe package. This kit features heavy duty .120 wall fabricated style headers that not only look good, but they also increase exhaust flow for quicker turbo spool up and lower EGT's. The tube lengths and mitered collectors are optimized for true pulse control technology which improves flow and performance across the power band. Two EGT ports are provided in this kit. One in the driver side manifold and an additional M14x1.5 port in the downpipe for installation of sensors, gauges, or testing equipment.

The up-pipes feature heavy duty flanges and 4" flex tubes with internal interlock liners all while retaining the factory EGR system. Just like the manifolds, the up-pipes are constructed from 304 stainless steel mandrel bent tubes with a brushed finish.

The downpipe or turbo direct pipe utilizes a 3 bolt exhaust flange connection and is a true bolt on downpipe requiring no cutting, drilling, or modifications for installation.

No shipping to CA
FEATURES & BENEFITS:
  • Retains Factory EGR System
  • Includes Heavy-Duty Gauge, .120 Wall Headers, .120 Wall Up-Pipes, and .065 Wall Down-Pipe
  • Brushed Finish 304 Stainless Steel Construction
  • Optimized Tube Lengths, Smooth Transition Bends, and Mitered Collectors Improve Flow
  • Includes 1/8" NPT and M14 Exhaust Gas Temperature Ports
  • Factory Style Flanges, Straightforward Connections, and Quality Hardware for a Leak-Free Seal
IMPORTANT NOTE:
  • This item will only fit 2015.5-2016 models manufactured after July 2014 equipped with a 3 bolt flanged down-pipe.
About AFE
AFE POWER PERFORMANCE PARTS AND ACCESSORIES

Since its founding in 1999, AFE Power (Advanced Flow Engineering) has been a leader in diesel performance. Built to improve airflow, fuel efficiency, and overall vehicle power, AFE Power products are engineered to handle the demands of diesel enthusiasts and professionals alike.

From AFE cold air intakes to high-performance exhausts, AFE Power offers a complete lineup of parts to boost your truck’s performance. Whether you’re running a Cummins, Powerstroke, or Duramax engine, Diesel Power Products has a full range of AFE Power parts to maximize your vehicle’s potential.

AFE COLD AIR INTAKE SYSTEMS FOR MAXIMUM AIRFLOW

One of AFE Power’s best-known products is the AFE cold air intake system, designed to increase airflow and improve combustion efficiency. With options for both open and closed systems, AFE cold air intakes are built to optimize horsepower and throttle response. For those aiming to push their trucks to the limit, these intakes provide the airflow needed for consistent, powerful performance.

AFE FILTERS FOR DIESEL ENGINES

AFE filters are made with various filter media to suit different driving environments. Choose from the Pro 5R, Pro 10R, Pro-GUARD 7, and Pro DRY S filters to achieve the right balance of airflow and filtration. Engineered with multiple layers of protection, AFE filters capture finer debris while maintaining excellent airflow, extending your engine's life and efficiency.

AFE POWER EXHAUST SYSTEMS FOR ENHANCED PERFORMANCE

Upgrading to an AFE Power exhaust system reduces backpressure and increases exhaust flow, allowing for improved performance and fuel efficiency. Built with premium materials, these exhausts provide a deeper sound without compromising factory emissions. AFE Power’s exhaust options help you achieve a cleaner, more efficient burn while adding an aggressive tone to your truck’s performance.

ABOUT ADVANCED FLOW ENGINEERING (AFE)

Headquartered in Corona, California, Advanced Flow Engineering (AFE) is known for its high-tech, in-house manufacturing and testing facilities, which include capabilities like CNC machining, CAD design, dyno testing, and more. With a commitment to quality and innovation, AFE Power continues to push the boundaries in diesel performance parts, delivering products that meet the needs of today’s diesel enthusiasts.

SHOP AFE PARTS AT DIESEL POWER PRODUCTS

Diesel Power Products is proud to offer a comprehensive selection of AFE parts for diesel trucks. From cold air intakes and filters to exhaust systems and tuners, we carry everything you need to upgrade your diesel truck with high-performance AFE Power products. Our experts are here to help you find the right parts for your specific needs.