MagnaFlow 15399 4" Diesel Turbo Downpipe for 2001-2004 Chevrolet/GMC Sierra 2500HD/3500

The MagnaFlow 15399 Performance Exhaust Diesel Turbo Downpipe is a 4" diameter mandrel-bent stainless steel pipe designed to connect near the turbocharger on 2001-2004 Chevrolet/GMC Sierra 2500HD/3500 (for vehicles not originally equipped with catalytic converter).

Weight-optimized with superior flow characteristics. 100% durable, corrosion-resistant stainless steel construction produced using precision CNC robotic manufacturing techniques. Professional installation highly recommended.

Key Features & Specs:

• 4" diameter mandrel-bent tubing
• 304 stainless steel
• Direct-fit turbo downpipe
• Superior flow and performance
• CNC precision robotic manufactured
• Corrosion resistant