The Stainless Steel Cummins Exhaust Manifold T-3 for 12 Valve engines, designed by Stainless Diesel, offers superior flow and performance enhancements, making it ideal for sled pullers and high-performance applications.

• Enhanced Flow: Shell molding technology ensures a super smooth casting, providing superior flow compared to traditional exhaust manifolds.
• Customizable: ¾-inch thick center section for custom porting to your specifications.
• Performance Boost: Improves turbo drivability, enhances spool-up, and increases horsepower and powerband width.
• Durable Construction: Thick wall casting retains heat, with 1.65-inch inside runner sizing for high flow.
• Direct Replacement: Fits in the same location as the OEM manifold, making it a straightforward factory replacement.

he Stainless Diesel Cummins Exhaust Manifold T-3 for 12 Valve engines is designed for high-performance sled pulling and daily driving. It features shell molding technology, resulting in a smooth internal and external finish that surpasses the traditional rough casting found in other exhaust manifolds. This technology ensures enhanced airflow, contributing to improved spool-up by several hundred RPMs and broader powerband. The manifold includes two ports drilled and tapped for EGT and Drive, providing flexibility for monitoring engine performance.

Constructed with a thick wall design, the manifold keeps heat within the system, optimizing efficiency. The ¾-inch thick center section allows for custom porting, catering to specific performance requirements. The runners maintain a consistent 1.65-inch diameter all the way to the center outlet, ensuring high flow and better turbo responsiveness.

This manifold is designed as a direct factory replacement for Dodge Cummins trucks, positioning it in the same location as the OEM part for easy installation. With its superior fit, finish, and performance, this exhaust manifold is a top choice for those looking to enhance their vehicle's power and efficiency.

Warranty Information

Please refer to the manufacturer’s warranty documentation for specific details on coverage and duration.