24VT4TS40 — 6.7 Cummins 2nd Gen T4 Twin Scroll Exhaust Manifold

The 2nd Gen Swap Manifold Built for Serious 6.7 Cummins Builds

If you're building a 6.7 Cummins with a 2nd Gen turbo conversion, don't compromise on the manifold.

The EPC 24VT4TS40 is a premium 3-piece T4 twin-scroll exhaust manifold engineered specifically around the demands of high-performance 24-valve Cummins builds.

Built from the same aerospace-grade 347 stainless steel used in our proven 12VT3TS40 manifold, the 24VT4TS40 is designed to handle extreme exhaust temperatures, repeated heat cycles and serious power while delivering the fitment and turbo positioning needed for a clean 2nd Gen swap.

This isn't a basic cast replacement manifold.

It's a purpose-built performance manifold for builders who expect more from their 6.7 Cummins.

🔥 Built for the 6.7 Cummins 2nd Gen Swap

The 24VT4TS40 uses a T4 twin-scroll configuration to give builders the flexibility to run larger performance turbochargers while maintaining the familiar 2nd Gen-style turbo location.

We've also moved the T4 flange out 10mm, providing additional turbo clearance and making installation cleaner and easier on 2nd Gen-style conversions.

Whether you're building a street truck, towing rig, competition truck or high-output 6.7, this manifold gives you a solid foundation for your turbo system.

💥 Why the 24VT4TS40?

Aerospace-Grade 347 Stainless Steel

Manufactured from the same premium 347 stainless steel used in our 12VT3TS40, selected for its excellent high-temperature strength and resistance to thermal fatigue.

3-Piece Construction

The 3-piece design helps manage thermal expansion and makes installation and servicing easier compared with a one-piece manifold.

T4 Twin Scroll

Designed around a T4 twin-scroll turbo configuration, giving performance builders the ability to take advantage of modern high-flow turbochargers and twin-scroll technology.

2nd Gen Turbo Position

Purpose-built around a 2nd Gen-style turbo layout, making it an ideal foundation for 6.7 Cummins 2nd Gen turbo conversions.

10mm Turbo Flange Offset

The T4 flange has been moved 10mm outward to improve turbo clearance and simplify fitment.

Built for Heat

347 stainless construction provides excellent durability through the extreme heat and repeated thermal cycling associated with high-performance diesel applications.

EGT Monitoring Ports

Includes dual 1/8" NPT ports for EGT probes, giving you the ability to monitor individual exhaust runners.

Premium Finish

Precision stainless construction gives the manifold the performance and appearance expected in a high-end engine build.

🔧 Applications

Designed for 24-valve Cummins applications, with the primary focus on 6.7 Cummins 2nd Gen turbo conversions.

✔ 2007.5–2025 6.7 Cummins

✔ 2002–2007 5.9 Cummins

✔ 1998–2002 5.9 Cummins

Note: Turbo, downpipe and surrounding component fitment should be verified for your specific 2nd Gen conversion and chassis application.

📦 Complete Installation Hardware Included

Every 24VT4TS40 manifold includes:

✔ 3-piece 347 stainless T4 twin-scroll exhaust manifold
✔ Manifold bolts
✔ Turbo studs
✔ Manifold gasket
✔ Turbo gasket
✔ Dual 1/8" NPT plugs

Built Like Our 12VT3TS40. Designed for Your 6.7.

The 24VT4TS40 brings the same aerospace-grade 347 stainless construction and EPC performance-engineering approach from our 12VT3TS40 into a purpose-built 6.7 Cummins 2nd Gen T4 twin-scroll manifold.

If you're building a serious 6.7, start with the right foundation.

EPC 24VT4TS40 — 2nd Gen fitment. T4 twin scroll. 347 stainless. Built for performance.