The PPE 3-Inch 304 Stainless Steel Down Pipes are designed to enhance exhaust flow on GM 6.6L Duramax engines. Constructed from high-quality 304 stainless steel, these down pipes reduce backpressure, improve turbocharger efficiency, and increase overall engine performance, making them ideal for heavy-duty and high-performance applications.

Key Features:

• High-Flow 3-Inch Design:
  Allows for greater exhaust flow, reducing backpressure and increasing horsepower and torque.

• 304 Stainless Steel Construction:
  Made from durable, corrosion-resistant stainless steel, ensuring longevity and reliability even under extreme conditions.

• Improved Turbo Efficiency:
  By reducing backpressure, these down pipes enhance turbo response, contributing to quicker spool times and improved throttle response.

• Direct Fit for GM Duramax Engines:
  Designed specifically for GM 6.6L Duramax engines, allowing for a straightforward installation with OEM and aftermarket components.

Technical Specifications:

• Material:
  High-grade 304 stainless steel for exceptional durability and corrosion resistance.

• Diameter:
  3 inches, optimized for increased exhaust flow and reduced backpressure.

• Compatibility:
  Suitable for GM 6.6L Duramax engines, perfect for performance upgrades.

• Function:
  Enhances exhaust flow, reduces backpressure, and supports improved turbocharger efficiency.

Installation Notes:
The PPE 3-Inch 304 Stainless Steel Down Pipes are a direct-fit replacement for stock down pipes, making installation easy while providing immediate performance benefits. Ideal for Duramax owners looking to improve exhaust flow and turbo efficiency, especially in heavy-duty or high-performance settings.

Installation Guide

01-04 Duramax Three-Inch Down Pipe

Compatible Vehicles