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Performance Downpipe for 4WD Cummins

Maximize your 1989-1993 Dodge 5.9L 4WD truck's exhaust efficiency with the Diamond Eye 4in Turbo Back Downpipe. Designed to accommodate the HX40 turbo flange, this high-performance downpipe is the ideal upgrade for enthusiasts looking to improve airflow and lower exhaust gas temperatures. Utilizing advanced CNC mandrel bending, this unit ensures smooth, consistent diameter throughout the bend, preventing the flow restrictions found in factory components.

Technical Specifications:

• Diameter: 4-inch mandrel-bent tubing for superior exhaust scavenging.
• Material: High-grade aluminized steel for a balance of durability and value.
• Fitment: Precision-engineered for 4WD 1989-1993 Dodge 2500/3500 models.
• Installation: Direct-fit design for the HX40 turbo outlet, simplifying the upgrade process.

This downpipe is built to withstand the rigors of daily driving and heavy-duty towing. By replacing the restrictive stock downpipe, you allow your 5.9L Cummins engine to spool the turbo faster and run cooler under load. The robust construction ensures that your exhaust system remains reliable for years to come. Trust in the quality of Diamond Eye Performance components available through GGCRACING.