Diamond Eye 220101 4" Intermediate Pipe First Section

The Diamond Eye 220101 is a 4-inch intermediate pipe designed as the first section of an exhaust system for 1989-1993 Dodge Ram 2500/3500 trucks equipped with the 5.9L Cummins diesel engine. This component is specifically engineered for 4x4 models and fits all cab and bed length configurations from this generation.

Key Features:

• Mandrel-bent 4-inch diameter aluminized steel construction for maximum exhaust flow
• Heavy-duty 16-gauge material provides excellent durability and corrosion resistance
• Precision-engineered to maintain consistent pipe diameter through bends, eliminating flow restrictions
• Manufactured in-house at Diamond Eye's Oregon facility using CNC mandrel bending equipment
• Direct-fit replacement component designed for easy installation with common hand tools

This intermediate pipe section helps reduce exhaust gas temperatures, improve fuel economy, and increase horsepower by allowing exhaust gases to flow more efficiently out of the turbo. The mandrel-bent design ensures smooth, consistent bends without crimping or reducing the internal diameter, maximizing exhaust flow compared to crush-bent alternatives. Backed by Diamond Eye's 1-year limited warranty.