🔥 2nd Gen Style Turbo Piping Kit – Fits 3rd & 4th Gen Dodge Cummins | Stainless Diesel Strength for S300/S400 Turbos

Drastically lower your EGTs, improve drive pressure, and enhance spool-up by converting your 3rd or 4th Gen Cummins to a 2nd Gen-style turbo configuration. Stainless Diesel's 2nd Gen Style Turbo Piping Kit is engineered for performance, reliability, and future twin-turbo expandability—all while delivering faster spool and a cleaner engine bay layout.

Built from CNC-machined flanges and aluminized mild steel, this kit is designed to withstand extreme boost and heat. Unlike kits with rubber or plastic components, ours is battle-tested for long-term durability in real-world diesel builds.

—

🧰 Designed for:

• 2003–2018 Dodge Ram Cummins (3rd & 4th Gen)

• Requires 2nd Gen-style 40° angle T4 manifold (sold separately)

• Compatible with S300 and S400-based turbochargers

• 3rd Gen kit configured for S300-style wastegated turbos

• Optional S400 configuration includes 4.62" V-band flange and clamp

—

📦 Kit Includes:

• High Flow Flow Boss Cold Air Intake w/ S&B Air Filter

• Pre-Filter Wrap

• Stainless Turbo Blanket

• Braided Stainless Steel -6 High-Temp Oil Feed Line

• Oil Feed Fitting

• Oil Drain Line + Press-In Aluminum Block Fitting & Silicone Hose

• Oil Drain Gasket

• Turbo Gaskets

• Turbo Mounting Studs & Bolts

• V-Band Clamp for Downpipe

• High Torque T-Bolt Clamps

• 3.00" Bead-Rolled Intercooler Pipe

• Silicone Boot for intercooler pipe to turbo side (uses factory boot at intercooler for 2003–2010 models)

• 5.00" Air Cleaner Pipe with IAT Sensor Port

• 4.00" Silicone Boot with T-Bolt Clamps

• 4.00" Aluminized Steel Downpipe

• 1.00" Billet Divided Spacer

• Waterline (for 2003–2005 models only)

• S400 V-Band Cover Option (if selected): Includes Aluminum Elbow, O-Ring & Clamp

—

⚠️ Notes:

• Kit requires a 2nd Gen 40° angle T4 manifold (not included)

• HE351 turbos require disassembly to remove clocking pin and our spring gate actuator (sold separately)

• All piping kits are made to order with a 1–2 week lead time

—

💬 Why Choose Stainless Diesel?

• Durable, high-strength construction — no plastic or rubber boost tubes

• Twin-turbo-ready layout puts the turbo in the optimal “twin position”

• Faster spool, lower EGTs, and better under-hood serviceability

• Designed, tested, and built in the USA

As described in our Privacy Policy, we collect personal information from your interactions with us and our website, including through cookies and similar technologies. We may also share this personal information with third parties, including advertising partners. We do this in order to show you ads on other websites that are more relevant to your interests and for other reasons outlined in our privacy policy.

Sharing of personal information for targeted advertising based on your interaction on different websites may be considered "sales", "sharing", or "targeted advertising" under certain U.S. state privacy laws. Depending on where you live, you may have the right to opt out of these activities. If you would like to exercise this opt-out right, please follow the instructions below.

If you visit our website with the Global Privacy Control opt-out preference signal enabled, depending on where you are, we will treat this as a request to opt-out of activity that may be considered a “sale” or “sharing” of personal information or other uses that may be considered targeted advertising for the device and browser you used to visit our website.