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

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