Diamond Eye Y-PIPE MAIN ASSY 4in AL DIA400Y

This is the Diamond Eye 4-inch aluminized Y-pipe assembly. You get the main Y-pipe component, ready to connect into your performance diesel exhaust system. It's made from aluminized steel, which offers good corrosion resistance for a longer lifespan compared to standard steel, especially in exhaust applications.

Diamond Eye uses CNC mandrel bending for their tubing, which helps maintain consistent diameter through the bends. This means better exhaust flow compared to crush bends, which can restrict gases. The 4-inch diameter is a common size for performance diesel applications where increased exhaust flow is a key goal. This Y-pipe is designed to be a direct replacement or upgrade part for systems needing this specific configuration.

Keep in mind this part is not CARB approved and cannot be shipped to California. Always refer to manufacturer instructions for proper installation and any specific hardware requirements.