aFe Large Bore-HD 5 IN 409 SS DPF-Back Exhaust System w/Black Tip

Fits 2020–2021 GM Trucks V8-6.6L

Part #: 49-44125-B

Overview

The aFe Large Bore-HD 5-inch DPF-back exhaust system is designed to enhance the performance and durability of your 2020–2021 GM truck equipped with a 6.6L V8 engine. Crafted from mandrel-bent 409 stainless steel tubing, this exhaust system offers maximum strength, corrosion resistance, and longevity. Its robust construction ensures reliable operation under demanding conditions while providing a sleek, aggressive appearance. The system is ideal for truck enthusiasts seeking improved exhaust flow, a commanding sound, and a rugged aesthetic that complements their vehicle’s capabilities. This exhaust system is engineered to deliver a deep, resonant exhaust note that enhances your driving experience without excessive drone. It supports optimal exhaust flow, which can contribute to improved engine response and efficiency. The included black 304 stainless steel intercooled clamp-on tip adds a bold visual accent, featuring the aFe POWER logo riveted for a distinctive style. Designed for straightforward installation, it mounts directly to factory locations using factory-style hangers, minimizing installation time and effort.

Key Features

This system combines durability, style, and performance with key features including:

• 5-inch mandrel-bent 409 stainless steel tubing for maximum strength and corrosion resistance
• 6-inch diameter black stainless steel exhaust tip with riveted logo for a bold, aggressive look
• Factory-style hangers for a hassle-free, direct bolt-on installation
• Deep, resonant exhaust tone designed to enhance driving enjoyment
• Optimized exhaust flow to support engine response and efficiency
• Durable construction suitable for demanding off-road and towing applications

Construction & Design

The exhaust system features mandrel-bent 409 stainless steel tubing, ensuring smooth bends that promote unrestricted exhaust flow and reduce turbulence. The black stainless steel tip is intercooled and clamp-on, providing a corrosion-resistant finish that withstands harsh conditions. The design emphasizes durability and style, with a focus on maintaining structural integrity and aesthetic appeal over time.

Driving Feel & Feedback

This exhaust system helps deliver a commanding exhaust note that enhances the vehicle’s character without excessive drone. It supports improved exhaust flow, which can contribute to better throttle response and a more engaging driving experience. The robust construction ensures reliable performance under various driving conditions, from daily commuting to off-road adventures.

Installation & Fitment

Designed for direct bolt-on installation, this system mounts to factory locations using factory-style hangers. Some cutting may be required, as detailed in the included instruction sheet, to ensure proper fitment and optimal performance. The straightforward design allows for a relatively quick and hassle-free upgrade process.

What’s Included

The package includes the mandrel-bent 5-inch stainless steel exhaust tubing, a 6-inch black stainless steel intercooled clamp-on tip with riveted logo, and all necessary hardware for installation. Additional components or tools are not typically required for a standard installation.