
Boost Your LML Duramax Performance with the AFE 48-34139 Twisted Steel Headers, Up-Pipes & Down-Pipe Kit
Take your LML Duramax to the next level with the AFE 48-34139 Twisted Steel Headers, Up-Pipes & Down-Pipe Kit. Designed for maximum performance and durability, this comprehensive exhaust upgrade is crafted from premium 304 stainless steel, ensuring robust construction and long-lasting reliability in any driving condition.
The 2-inch mandrel-bent headers are engineered for superior exhaust flow, reducing backpressure and increasing power throughout the entire RPM range. Paired with the 3-inch mandrel-bent down-pipe, this system significantly enhances exhaust flow and horsepower, allowing your Duramax to breathe more freely and unleash its full potential.
The heavy-duty up-pipes feature 4-inch 304 stainless steel flex tubes with internal interlock liners, providing exceptional strength and flexibility for high-performance applications. This kit is designed with dual 1/8” NPT exhaust gas temperature (EGT) ports, offering multiple monitoring options to help you keep track of your engine's performance.
Features and Benefits:
- Premium Construction: Crafted from 304 stainless steel for superior strength, durability, and corrosion resistance.
- Optimized Exhaust Flow: 2-inch mandrel-bent headers and 3-inch down-pipe reduce backpressure and increase horsepower and torque.
- Heavy-Duty Up-Pipes: 4-inch flex tubes with internal interlock liners provide enhanced strength and longevity under extreme conditions.
- Versatile EGT Monitoring: Includes two 1/8” NPT EGT ports for convenient exhaust gas temperature monitoring.
- Comprehensive Upgrade: Complete kit designed to deliver maximum performance gains across the entire RPM range.
Upgrade your LML Duramax with the AFE 48-34139 Twisted Steel Headers, Up-Pipes & Down-Pipe Kit and experience unparalleled power, efficiency, and durability. Order yours today and transform your truck’s performance.

Boost Your LML Duramax Performance with the AFE 48-34139 Twisted Steel Headers, Up-Pipes & Down-Pipe Kit
Take your LML Duramax to the next level with the AFE 48-34139 Twisted Steel Headers, Up-Pipes & Down-Pipe Kit. Designed for maximum performance and durability, this comprehensive exhaust upgrade is crafted from premium 304 stainless steel, ensuring robust construction and long-lasting reliability in any driving condition.
The 2-inch mandrel-bent headers are engineered for superior exhaust flow, reducing backpressure and increasing power throughout the entire RPM range. Paired with the 3-inch mandrel-bent down-pipe, this system significantly enhances exhaust flow and horsepower, allowing your Duramax to breathe more freely and unleash its full potential.
The heavy-duty up-pipes feature 4-inch 304 stainless steel flex tubes with internal interlock liners, providing exceptional strength and flexibility for high-performance applications. This kit is designed with dual 1/8” NPT exhaust gas temperature (EGT) ports, offering multiple monitoring options to help you keep track of your engine's performance.
Features and Benefits:
Premium Construction: Crafted from[...]
Boost Your LML Duramax Performance with the AFE 48-34139 Twisted Steel Headers, Up-Pipes & Down-Pipe Kit
Take your LML Duramax to the next level with the AFE 48-34139 Twisted Steel Headers, Up-Pipes & Down-Pipe Kit. Designed for maximum performance and durability, this comprehensive exhaust upgrade is crafted from premium 304 stainless steel, ensuring robust construction and long-lasting reliability in any driving condition.
The 2-inch mandrel-bent headers are engineered for superior exhaust flow, reducing backpressure and increasing power throughout the entire RPM range. Paired with the 3-inch mandrel-bent down-pipe, this system significantly enhances exhaust flow and horsepower, allowing your Duramax to breathe more freely and unleash its full potential.
The heavy-duty up-pipes feature 4-inch 304 stainless steel flex tubes with internal interlock liners, providing exceptional strength and flexibility for high-performance applications. This kit is designed with dual 1/8” NPT exhaust gas temperature (EGT) ports, offering multiple monitoring options to help you keep track of your engine's performance.
Features and Benefits:
- Premium Construction: Crafted from 304 stainless steel for superior strength, durability, and corrosion resistance.
- Optimized Exhaust Flow: 2-inch mandrel-bent headers and 3-inch down-pipe reduce backpressure and increase horsepower and torque.
- Heavy-Duty Up-Pipes: 4-inch flex tubes with internal interlock liners provide enhanced strength and longevity under extreme conditions.
- Versatile EGT Monitoring: Includes two 1/8” NPT EGT ports for convenient exhaust gas temperature monitoring.
- Comprehensive Upgrade: Complete kit designed to deliver maximum performance gains across the entire RPM range.
Upgrade your LML Duramax with the AFE 48-34139 Twisted Steel Headers, Up-Pipes & Down-Pipe Kit and experience unparalleled power, efficiency, and durability. Order yours today and transform your truck’s performance.