The T-4 Stainless Steel Cummins Exhaust Manifold for 12 Valve engines, designed by Stainless Diesel, delivers superior airflow and performance, making it ideal for sled pullers and high-performance applications.

• Superior Flow: Utilizes shell molding technology for a super smooth casting that enhances airflow compared to traditional rough castings.
• Customizable Design: Features a ¾-inch thick center section, allowing for custom porting to meet specific performance needs.
• Performance Enhancements: Improves turbo drivability, accelerates spool-up by several hundred RPMs, increases horsepower, and widens the powerband.
• Durable Construction: Thick wall casting retains heat effectively, with 1.65-inch inside runner sizing for consistent high flow.
• Excellent Fit: Designed with precision for a superior fit and finish, providing excellent performance over competitors.

The T-4 Stainless Steel Cummins Exhaust Manifold for 12 Valve engines by Stainless Diesel is engineered for high-performance sled pulling and daily driving. Crafted using advanced shell molding technology, this manifold offers a smooth internal and external finish, significantly improving airflow compared to traditional, rough-cast exhaust manifolds. This advanced construction leads to enhanced spool-up, with improvements of several hundred RPMs, broader powerband, and increased horsepower.

This manifold is equipped with two ports drilled and tapped for EGT and Drive,