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Performance Downpipe for 1st Gen Dodge Cummins

Unlock the hidden power of your 1989-1993 Dodge D250 or D350 with the 5.9L Cummins engine. The Diamond Eye 4in Turbo Downpipe is specifically engineered to replace the restrictive factory exhaust outlet, providing a significant boost in airflow. For the 1st Gen Cummins owner, this is one of the most impactful modifications you can make to improve turbo efficiency and lower exhaust gas temperatures during heavy towing or performance tuning.

Engineered for Excellence

• Maximized Flow: 4-inch diameter allows for rapid exhaust gas evacuation.
• Perfect Fitment: Specifically designed for the 89-93 5.9L Dodge Cummins platform.
• Durable Aluminized Steel: Built to withstand the high heat and pressure of diesel combustion.
• Turbo Efficiency: Reduces backpressure, allowing your turbo to spool faster and more reliably.

Diamond Eye Manufacturing combines modern CNC mandrel bending technology with high-quality materials to ensure a perfect fit every time. This downpipe is an essential component for anyone looking to increase the performance of their 1st Gen Cummins. By smoothing out the exhaust path, you allow your engine to run more efficiently, which can lead to better fuel economy and increased longevity. Don't let a restrictive exhaust hold back your truck's potential. Upgrade your system today with high-quality components from GGCRACING.