aFe Up-Pipe

Fits 2001–2004 GM Duramax LB7 Diesel Trucks

Part #: 48-34009

Overview

The aFe Twisted Steel Up-Pipe is a high-performance upgrade designed specifically for GM Duramax LB7 diesel trucks from 2001 to 2004. Crafted from durable 304 stainless steel, these up-pipes feature mandrel-bent 2" tubing with a .120" wall thickness, ensuring strength and longevity under demanding conditions. The heavy-duty flex pipes incorporate internal liners to accommodate engine movement and thermal expansion, reducing stress and potential leaks. With high-quality 3/8" thick flanges, this upgrade provides a reliable, leak-free seal for optimal exhaust flow and performance. Whether you're aiming to improve your truck's response or enhance its durability, these up-pipes are engineered to support your diesel's powertrain.

Key Features

Designed with precision mandrel bends for smooth exhaust flow and reduced turbulence. Constructed from corrosion-resistant 304 stainless steel for long-lasting durability. Heavy-duty flex pipes with internal liners help absorb engine movement and thermal expansion. Thick flanges ensure a complete seal, preventing leaks and maintaining optimal exhaust pressure. Built to withstand high temperatures and harsh conditions typical of diesel applications. Easy to install with a direct bolt-on design, compatible with factory or aftermarket exhaust systems. Supports improved turbo response and overall engine efficiency.

Construction & Design

These up-pipes are meticulously constructed from 304 stainless steel, known for its corrosion resistance and strength. The mandrel-bent tubing ensures consistent diameter and smooth bends, promoting optimal exhaust flow. The inclusion of heavy-duty flex pipes with internal liners enhances durability and flexibility, accommodating engine movement without cracking or leaks. The 3/8" thick flanges provide a robust sealing surface, ensuring a leak-free connection to the exhaust manifold and downpipe.

Installation & Fitment

Designed as a direct bolt-on upgrade, these up-pipes are intended to replace the factory components on GM Duramax LB7 trucks from 2001 to 2004. Proper installation may require basic mechanical skills and standard hand tools. It is recommended to follow manufacturer instructions for best results and ensure all connections are properly sealed.

Ideal For

Diesel truck enthusiasts seeking to improve exhaust flow and engine response. Owners looking to enhance the durability and reliability of their exhaust system. Those performing maintenance or upgrades on GM Duramax LB7 models aiming for a long-lasting, high-quality solution.