MBRP S6005SLM 4 Inch Downpipe-Back Exhaust System T409 Stainless Steel

The MBRP S6005SLM ARMOR PLUS Series exhaust system delivers enhanced performance and aggressive sound for 2001-2004 Duramax diesel trucks. This complete 4-inch downpipe-back system features a straight-through, no-muffler design that maximizes exhaust flow and unleashes the deep, powerful tone enthusiasts demand.

Key Features:

• 4-inch mandrel-bent T409 stainless steel tubing for maximum flow and durability
• Straight-through design with no muffler for aggressive exhaust note
• Single side exit configuration for clean installation
• Corrosion-resistant T409 stainless steel construction
• Mandrel bending eliminates restrictions and rippling in bends
• Backed by MBRP's 5-year limited warranty

System Configuration:

• 4-inch diameter tubing throughout
• Downpipe-back system (replaces exhaust from turbo outlet to rear exit)
• No muffler design for maximum flow and sound
• Single side exit

Material Benefits:

Constructed from T409 stainless steel, this system offers excellent resistance to corrosion and rust penetration while remaining easy to clean and maintain. The mandrel-bent tubing ensures smooth, unrestricted exhaust flow, allowing your engine to breathe freely and produce more power. T409 stainless provides outstanding value and durability for trucks not regularly exposed to heavy salt or extreme winter conditions.

Installation Notes:

• Cutting required for proper installation
• Professional installation recommended
• Not for use on vehicles equipped with catalytic converter
• Excludes 2002-2004 California emissions models

MBRP has been engineering performance exhaust systems for diesel and sports truck enthusiasts for over 15 years, delivering products that combine maximum power gains with exceptional build quality and responsive customer support.