Diamond Eye Performance depK4211A-RP 4-Inch Aluminized Turbo-Back Exhaust System for 1989-1993 Dodge 5.9L Cummins

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, 1989-1993 DODGE 5.9L CUMMINS 2500/3500 (ALL CAB AND BED LENGTHS)-4in. ALUMINIZED Made in USA, Increased Performance, Aggressive Sound, Affordable

The Diamond Eye Performance depK4211A-RP exhaust system kit is designed for 1989-1993 Dodge 2500 and 3500 trucks equipped with the 5.9L Cummins diesel engine. This 4-inch turbo-back system replaces restrictive factory exhaust components with mandrel-bent aluminized steel tubing to support improved exhaust flow, increased performance, and a more aggressive exhaust tone. It is engineered for trucks across all cab and bed-length configurations, making it a practical upgrade for a wide range of applications.

Manufactured in the USA by Diamond Eye Performance, the depK4211A-RP reflects the company’s focus on precise fabrication and durable aftermarket exhaust components. CNC mandrel bending helps maintain consistent tubing diameter through bends, while the aluminized steel construction provides dependable service for street-driven and work-oriented trucks. The kit is intended as a muffler replacement pipe configuration and is designed for turbo-back installation on compatible Dodge Cummins applications.

This exhaust system is not CARB approved and may not be legal for use on emissions-controlled vehicles in some states or applications. Verify local emissions regulations before installation. Fitment includes 1989-1993 Dodge W250 and W350 models with the 5.9L Cummins engine, including the 1989, 1990, 1991, 1992, and 1993 model years. Confirm the vehicle’s existing exhaust configuration and installation requirements before ordering.

What's Included

• Diamond Eye Performance depK4211A-RP 4-inch aluminized turbo-back exhaust system kit
• Application-specific exhaust tubing and muffler replacement components

Features:

• 4-Inch Turbo-Back Design: Replaces restrictive factory exhaust components to support increased exhaust flow and performance.
• Aluminized Steel Construction: Provides durable tubing material for dependable use in street, towing, and work-truck applications.
• CNC Mandrel-Bent Tubing: Maintains a consistent internal passage through bends for efficient exhaust flow.
• Aggressive Exhaust Sound: Delivers a deeper, more assertive exhaust tone while complementing the performance of the 5.9L Cummins engine.
• Broad Dodge Cummins Fitment: Designed for 1989-1993 Dodge 2500 and 3500 trucks across available cab and bed-length configurations.
• Made in USA: Manufactured by Diamond Eye Performance using domestic engineering, fabrication, and quality-control processes.

Fitments:
1989 Dodge W250 Base
1989 Dodge W350 Base
1990 Dodge W250 Base
1990 Dodge W350 Base
1991 Dodge W250 Base
1991 Dodge W350 Base
1992 Dodge W250 Base
1992 Dodge W350 Base
1993 Dodge W250 Base
1993 Dodge W350 Base

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