MBRP Stainless Steel Front-Pipe w/Flange for 2001-2005 Chevy GMC 6.6L Duramax GMS9401

Get even more exhaust flow with this 4" Front Pipe with Flange.

Built from T-409 Stainless Steel, MBRP’s 4" Front Pipe with Flange is designed to increase exhaust flow and improve performance. Removal of OEM catalytic converters may be a violation of emissions laws in your jurisdiction. Ensure that the intended use of this product is permitted. Not for sale or use in the state of California.

Key Features

• Adds Horsepower and Torque
• Improved Airflow through 4" Mandrel-bent tubing
• Lowers Exhaust Gas Temperatures
• Backed by a 3-year warranty