What is a 'turbo back' exhaust system?

A turbo back exhaust system replaces all the factory exhaust components from the turbocharger outlet all the way to the rear of the vehicle. This full replacement allows for improved exhaust flow compared to systems that only replace part of the exhaust.

What is the difference between this kit and one with a muffler?

This kit is a muffler replacement, meaning it does not include a muffler. This will result in a significantly louder and more aggressive exhaust sound compared to a system that includes a muffler designed to quiet the exhaust.

What does 'CNC mandrel bent' mean for my exhaust?

CNC mandrel bending ensures that the exhaust tubing maintains a consistent diameter throughout the bends. This prevents kinks or restrictions that can occur with other bending methods, allowing exhaust gases to flow more freely and efficiently.

Diamond Eye KIT 4in Turbo Back MRP SGL SS DDG4X4 89-93 Dodge 5.9L Cummins 2500/3500 No Muffler

Specifications

Brand: Diamond Eye Performance
Part #: K4211S-RP
UPC: 841963103281

Diamond Eye KIT 4in Turbo Back MRP SGL SS DDG4X4 89-93 Dodge 5.9L Cummins 2500/3500 No Muffler

Name: Diamond Eye KIT 4in Turbo Back MRP SGL SS DDG4X4 89-93 Dodge 5.9L Cummins 2500/3500 No Muffler
Brand: Diamond Eye Performance
Price: 644.33 USD
Availability: InStock

$644.33

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits 1989-1993 Dodge W250. This 4-inch stainless steel turbo back exhaust kit replaces your stock system for improved flow.

Key Features

Fits 1989-1993 Dodge W250 and W350 5.9L Cummins 4x4 trucks.
This is a 4-inch diameter turbo back exhaust system, replacing the entire factory setup from the turbocharger to the tailpipe.
Constructed from durable stainless steel for excellent corrosion resistance.
Features CNC mandrel bent tubing to ensure consistent diameter and smooth exhaust flow.
This kit is a muffler replacement, meaning it will produce a louder, more aggressive exhaust note.
Designed specifically for 4x4 models to ensure proper fitment around the drivetrain.

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Fits these vehicles

Dodge W250 1989-1993
Dodge W350 1989-1993

Product Details

If you're looking to get more out of your 1989-1993 Dodge 5.9L Cummins 4x4, upgrading the exhaust system is a solid move. This Diamond Eye Performance turbo back kit is designed to replace your entire factory exhaust from the turbocharger all the way back, giving you a full 4-inch diameter for better exhaust gas flow. Since it's a turbo back system, it's built to handle the increased exhaust volume and heat that comes with a Cummins engine, especially if you've made other performance modifications.

This kit is constructed from stainless steel, which means it's well-built to resist corrosion and last a long time, even in tough conditions. Diamond Eye uses CNC mandrel bending for their tubing. This process ensures consistent tube diameter throughout the bends, which is crucial for maintaining smooth exhaust flow and preventing restrictions. Because this kit is a muffler replacement, it will have a more aggressive exhaust note compared to a system with a muffler. This setup is specifically for the 4x4 models of the 2500 and 3500 series trucks, ensuring it clears the frame and drivetrain components correctly.

When installing this kit, you'll be replacing the entire exhaust system, so be prepared for that process. It's designed as a direct replacement for the factory setup, meaning it should bolt up without needing major modifications. Remember that this system is not CARB approved and cannot be shipped to California. If you're aiming for improved exhaust flow and a more direct sound from your Cummins, this stainless steel turbo back kit is a strong option.