Diamond Eye Performance depK4110A-RP 4-Inch Cat-Back Exhaust System for 2001-2005 Chevy/GMC 6.6L Duramax 2500/3500

Diamond Eye Manufacturing is recognized as being one of the most modern and progressive companies in eastern Oregon. The company has invested heavily to incorporate several CNC mandrel bending machines and support equipment, Enabling us to produce the finest exhaust components in today's marketplace. Mandrel bending and fabrication parameters are extensive, and a variety of tooling allows us to offer tube processing from 3/8" to 5"OD in both aluminized and stainless steel. Diamond Eye Manufacturing is located on a 23-acre complex and has immediate plans for expansion. Currently, the company utilizes over 60,000 sq. ft. for manufacturing components. Separate from the manufacturing facility, our Warehouse Distribution Center utilizes highly efficient shipping methods and a substantial amount of inventory to ensure rapid response times for delivering customer orders in a timely fashion. Our new state of the art Research and Development Center was established to keep pace with the ever changing automotive performance aftermarket. We have taken great care to outfit the facility with an array of testing equipment to provide our engineers with the information needed to design the best systems available. Many of the employees here at Diamond Eye Manufacturing have several years of experience within the industry. This wealth of knowledge and experience is tapped and transformed into results. Our promise to you is simply this, we will provide you with the highest level of customer service, quality parts, and best prices available to keep you competitive! Exhaust System Kit, 2001-2005 CHEVY/GMC 6.6L DURAMAX 2500/3500 (ALL CAB AND BED LENGHTS)-4in. ALUMIN Made in USA, Increased Performance, Aggressive Sound, Affordable

The Diamond Eye Performance depK4110A-RP exhaust system is designed for 2001-2005 Chevrolet Silverado and GMC Sierra 2500 and 3500 trucks equipped with the 6.6L Duramax diesel engine. This 4-inch cat-back system is engineered to replace the muffler and rear exhaust piping while supporting improved exhaust flow, increased performance, and an aggressive exhaust tone. Its application coverage includes all cab and bed lengths for the specified truck platforms.

Manufactured in the USA, the Diamond Eye Performance depK4110A-RP is built using precision mandrel-bending and fabrication processes. Mandrel-bent tubing helps maintain a consistent internal diameter through bends, supporting efficient exhaust-gas movement and reducing unnecessary restrictions. The aluminized steel construction provides a practical balance of durability, corrosion resistance, and value for street-driven and performance-oriented trucks.

Diamond Eye Manufacturing uses advanced CNC equipment, extensive tooling, and dedicated research and development resources to produce dependable aftermarket exhaust components. The kit is intended for direct vehicle-specific installation and is supplied as a complete exhaust system kit for the listed applications. Confirm vehicle configuration and emissions requirements before installation. This product may require a California emissions acknowledgment and is not identified as CARB approved.

Fitment: Fits select 2001-2005 Chevrolet Silverado 2500 HD, Chevrolet Silverado 3500, GMC Sierra 2500 HD, and GMC Sierra 3500 models with the 6.6L Duramax engine. Designed for trucks with all cab and bed lengths where applicable.

What's Included

• Diamond Eye Performance 4-inch cat-back exhaust system
• Muffler replacement components
• Replacement exhaust piping
• Application-specific installation components

Features:

• Vehicle-Specific Fitment: Designed for 2001-2005 Chevrolet and GMC 2500/3500 trucks with the 6.6L Duramax diesel engine.
• 4-Inch Cat-Back Design: Replaces the muffler and rear exhaust piping to support improved exhaust flow.
• Aluminized Steel Construction: Provides durable corrosion resistance and cost-effective long-term service.
• Mandrel-Bent Tubing: Helps maintain consistent tubing flow through bends for reduced exhaust restriction.
• Increased Performance: Supports improved exhaust system breathing for performance-oriented diesel applications.
• Aggressive Sound: Delivers a deeper, more assertive exhaust tone than the factory system.
• Made in the USA: Manufactured by Diamond Eye Performance using precision fabrication processes.
• Broad Configuration Coverage: Intended for applicable 2500 and 3500 trucks across available cab and bed lengths.

Fitments:
2001 Chevrolet Silverado 2500 HD Base
2001 Chevrolet Silverado 2500 HD LS
2001 Chevrolet Silverado 2500 HD LT
2001 Chevrolet Silverado 3500 Base
2001 Chevrolet Silverado 3500 LS
2001 Chevrolet Silverado 3500 LT
2001 GMC Sierra 2500 HD SL
2001 GMC Sierra 2500 HD SLE
2001 GMC Sierra 2500 HD SLT
2001 GMC Sierra 3500 SL
2001 GMC Sierra 3500 SLE
2001 GMC Sierra 3500 SLT
2002 Chevrolet Silverado 2500 HD Base
2002 Chevrolet Silverado 2500 HD LS
2002 Chevrolet Silverado 2500 HD LT
2002 Chevrolet Silverado 3500 Base
2002 Chevrolet Silverado 3500 LS
2002 Chevrolet Silverado 3500 LT
2002 GMC Sierra 2500 HD Base
2002 GMC Sierra 2500 HD SL
2002 GMC Sierra 2500 HD SLE
2002 GMC Sierra 2500 HD SLT
2002 GMC Sierra 3500 Base
2002 GMC Sierra 3500 SL
2002 GMC Sierra 3500 SLE
2002 GMC Sierra 3500 SLT
2003 Chevrolet Silverado 2500 HD Base
2003 Chevrolet Silverado 2500 HD LS
2003 Chevrolet Silverado 2500 HD LT
2003 Chevrolet Silverado 3500 Base
2003 Chevrolet Silverado 3500 LS
2003 Chevrolet Silverado 3500 LT
2003 GMC Sierra 2500 HD Base
2003 GMC Sierra 2500 HD SLE
2003 GMC Sierra 2500 HD SLT
2003 GMC Sierra 2500 HD WT
2003 GMC Sierra 3500 Base
2003 GMC Sierra 3500 SLE
2003 GMC Sierra 3500 SLT
2004 Chevrolet Silverado 2500 HD Base
2004 Chevrolet Silverado 2500 HD LS
2004 Chevrolet Silverado 2500 HD LT
2004 Chevrolet Silverado 2500 HD WT
2004 Chevrolet Silverado 3500 Base
2004 Chevrolet Silverado 3500 LS
2004 Chevrolet Silverado 3500 LT
2004 Chevrolet Silverado 3500 WT
2004 GMC Sierra 2500 HD Base
2004 GMC Sierra 2500 HD SLE
2004 GMC Sierra 2500 HD SLT
2004 GMC Sierra 2500 HD WT
2004 GMC Sierra 3500 Base
2004 GMC Sierra 3500 SLE
2004 GMC Sierra 3500 SLT
2004 GMC Sierra 3500 WT
2005 Chevrolet Silverado 2500 HD Base
2005 Chevrolet Silverado 2500 HD LS
2005 Chevrolet Silverado 2500 HD LT
2005 Chevrolet Silverado 2500 HD WT
2005 Chevrolet Silverado 3500 Base
2005 Chevrolet Silverado 3500 LS
2005 Chevrolet Silverado 3500 LT
2005 GMC Sierra 2500 HD Base
2005 GMC Sierra 2500 HD SLE
2005 GMC Sierra 2500 HD SLT
2005 GMC Sierra 2500 HD WT
2005 GMC Sierra 3500 Base
2005 GMC Sierra 3500 SLE
2005 GMC Sierra 3500 SLT
2005 GMC Sierra 3500 WT

Air Freight Prohibited: false
Not Carb Approved: false
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Unknown
Part Type: automotive
Epa: N/A
Regular Stock: t
Units Per Sku: 1