Description
High-Performance Exhaust System. The aFe POWER Large Bore-HD 4-Inch DPF-Back Dual Exhaust System with Black Tips; Side Exit enhances exhaust flow and helps increase horsepower, torque, and throttle response for your 6.6L Duramax diesel engine. Designed to replace the factory DPF-back system, it optimizes performance while maintaining a clean and aggressive exhaust tone essential for diesel truck enthusiasts.
Construction and Appearance. Manufactured from durable 409 stainless steel with mandrel bends, this exhaust system ensures long-lasting strength and leak-free connections. The dual 5-inch black intercooled clamp-on tips are made from 304 stainless steel and feature a riveted aFe POWER logo plate for a distinctive and professional finish.
Installation. Installation requires some cutting but uses factory-style hangers for a secure, direct fit to existing mounting points, facilitating a hassle-free upgrade process. Basic automotive tools and mechanical knowledge are recommended to achieve a smooth installation.
Application. This exhaust system is specifically engineered to fit the 2020-2026 6.6L Duramax Sierra 3500 HD models, ensuring compatibility with both crew and double cab configurations, as well as short and long bed variations.
AFE 49-44126-B
CA Residents: WARNING: Cancer and Reproductive Harm
- Constructed From 4″ Mandrel-Bent 409 Stainless Steel Tubing
- Dual 5″ Diameter Black 304 Stainless Steel Intercooled Clamp-On Exhaust Tips
- Utilizes Factory Style Hangers For A Secure Fit
- 100% MIG-Welded For Strength And Durability
- All Necessary Hardware Is Included For A Hassle-Free Installation
- Coupler Included
- Integrated Mitered Merge Collector To Decrease Turbulence And Increase Exhaust Velocity
- Computer-Aided Design For Custom High Tolerance Factory Fitment
- Wheelbase Fitment Covers Double Cab Short-Bed 149.4″, Crew Cab Short-Bed 158.9″, Double Cab Long-Bed 162.4″, And Crew Cab Long-Bed 172″
- Fits 20-26 6.6L Duramax Sierra 3500 HD
| Brand | AFE |
| Exhaust System Type | Cat-Back System |
| Exhaust Tip Finish | Black, Black Chrome |
| Exhaust Tubing Diameter | 4.00 Inch |
| Exhaust Material | Stainless Steel |
| Exhaust Tip Outlet Style | Dual |
| Exhaust Exit Location | Both Sides – After Tire |
| Exhaust Loudness | Moderate |
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