2001-2005 GM HD Duramax 6.6L 4" Exhaust System (MAG15398)

The MagnaFlow Performance Exhaust Diesel Turbo Downpipe is engineered to improve exhaust flow directly from the turbocharger for enhanced performance. Featuring a 3in diameter mandrel-bent design, this downpipe delivers smooth, unrestricted airflow while maintaining a weight-optimized construction. Built from 100% durable, corrosion-resistant stainless steel and manufactured using precision CNC robotic techniques, it is designed for long-lasting reliability in demanding diesel applications.

Features

• Diesel turbo downpipe design
• 3in diameter mandrel-bent pipe
• Designed to connect near the turbocharger
• Improves exhaust flow and performance
• Weight-optimized construction
• 100% corrosion-resistant stainless steel
• Precision CNC robotic manufacturing

Specifications

• Component Type: Turbo Downpipe
• Pipe Diameter: 3in
• Material: Stainless Steel
• Construction: Mandrel-Bent
• Manufacturing Process: CNC Robotic

Notes

• Professional installation is recommended