MBRP GMAL401 Silverado/Sierra 4 Inch Front Pipe Flange For 01-04 Silverado/Sierra 2500/3500 Duramax Armor Lite Series For

Aluminized Steel 4 Inch Front-Pipe with Flange Chev/GMC 4 Inch Front Pipe Flange Installer Series

Built to Perform
MBRP's performance exhaust systems are built to perform. Designed to maximize exhaust flow and minimize exhaust temperatures your Truck will use less gas, last longer and perform better. Every system we sell has been built to the most exacting standards in the industry.

Dyno Proven
Your MBRP performance gas exhaust system has undergone countless hours on our in-house Mustang 1100 AWD-SE Chassis Dynamometer, hundreds of miles on road and track and numerous tweaks and modifications to get the most out of your Truck.

From the vehicle specific Muffler design to the fully mandrel bent tubing to minimal bend degree angles, your MBRP performance system gets exhaust out fast. An MBRP performance exhaust system is the starting point to getting the most from cold air intakes, programmers, modules and downloaders.

Easy Installation
MBRP systems are as much fun to install as to drive with on your Truck. Bolt-on, no weld design makes installation a no hassle one and a half to two hour project. Everything is direct fit to the OEM hangers and you get All the clamps and parts you will need.

Sound and Style
Performance is one thing but at MBRP we believe that appearance and sound are just as important. Every MBRP performance exhaust system has been specifically tuned to get the optimal sound from your pickup. With our stamped logo on the Tip and our unmistakable styling, there's no question that you have the hottest performance exhaust on the road-MBRP

• 2001-Up Chev/GMC-Duramax 2500/3500
• 4 Inch Front-Pipe w/Flange
• Aluminum
• Not for use on vehicles equipped with Catalytic Converter
• (2002-2004 'Clean State' [California] has a Catalytic Converter) 2001-2004 Chevrolet/GMC Duramax 2500/3500
• Not to be sold in California

Elevate your 2001-2004 Chevrolet/GMC Duramax 2500/3500 with the MBRP GMAL401 Aluminized Steel 4-Inch Front Pipe with Flange. This premium performance exhaust component is expertly engineered to enhance your truck's exhaust flow and reduce temperatures, contributing to improved fuel efficiency, longevity, and overall performance. Crafted to meet the highest industry standards, every MBRP exhaust system is a testament to quality and precision.

Designed for peak performance, the MBRP exhaust system has been rigorously tested on the Mustang 1100 AWD-SE Chassis Dynamometer and fine-tuned through extensive road and track experience. The innovative muffler design paired with mandrel-bent tubing ensures that exhaust gases are expelled with minimal resistance, making your truck feel more responsive and lively. The system is an ideal starting point for optimizing the benefits of other upgrades such as cold air intakes, programmers, and modules.

Installation is straightforward and user-friendly, taking between one and two hours with a bolt-on, no-weld design that fits directly onto OEM hangers. All necessary clamps and hardware are included, making it a hassle-free upgrade that any truck enthusiast can tackle.

Beyond performance, the MBRP GMAL401 carries a distinctive sound and style that sets it apart from the crowd. Its expertly tuned exhaust note makes for an exhilarating drive, and the stamped logo on the exhaust tip signifies that you’re equipped with one of the hottest performance exhaust systems on the market.

Please note that this front pipe is not suitable for use on vehicles with a catalytic converter, particularly those manufactured in California between 2002 and 2004. Experience the MBRP advantage today and transform your Silverado or Sierra into a powerhouse on the road.