S300/S400 Twin Piping Kit '03-'07 5.9

🔥 Stainless Diesel Twin/Compound Turbo Piping Kit – Fits 2003–2007 Dodge Cummins 5.9L (3rd & 4th Gen)

Unlock massive power gains, faster spool-up, and lower exhaust gas temps (EGTs) with the Stainless Diesel Twin/Compound Turbo Piping Kit — designed for 3rd and 4th Gen Dodge Ram 2500/3500 5.9L Cummins (2003–2007). Whether you’re building a 1000+ HP monster or just want the best of both worlds (quick spool and big top-end power), this kit delivers unbeatable airflow, efficiency, and drivability.

Made in the USA with CNC’d flanges, TIG-welded piping, and our 5-layer extreme duty silicone boots, this is the high-boost-ready kit serious diesel builders rely on.

Please select the appropriate exhaust housing flange of the manifold charger that you will be using, that way we can build the hot pipe correctly.

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🛠️ Kit Compatibility:

• Engine: 5.9L Cummins (Common Rail)

• Model Years: 2003–2007 Dodge Ram 2500 / 3500

• Turbo Setup: Designed for T3 S300 Wastegated + S400 T6 Secondary

• Power Range: Up to 1000+ HP with proper turbos and tuning

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✅ What’s Included:

• 5x12 High-Flow S&B Air Filter w/ Power Cone Tip

• 5.00" Air Cleaner Pipe

• Braided Stainless Steel High-Temp Oil Supply Lines

• Oil Feed Fittings, Drain Lines, & Gaskets

• 3.00" Bead-Rolled Intercooler Pipe

• 3.50" One-Piece Cold Pipe w/ O-Ring Flange, Bead-Rolled Ends, & 1/8" NPT Port (Boost Reference)

• 3.50"–4.00" Silicone Reducer w/ T-Bolt Clamps

• 5.00" Silicone Boot + T-Bolt Clamps

• 4.00" Mandrel-Bent Downpipe

• High-Strength S400 Turbo Mounting Bracket

• CNC’d T3 1.00" Spacer

• Hot Pipe (Short Stretch Design) – Heat Insulated, CNC’d Flanges for Maximum Flow

• Optional Spring Wastegate Actuator for S300

• Turbo Studs & Mounting Nuts

• High-Torque V-Band & T-Bolt Clamps

• Water Relocation Line w/ Fittings

• High-Quality Powder Coating (Color Options Available)

• Full Install Instructions w/ Pictures

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💪 Built to Perform. Built to Last.

• CNC'd Mild Steel Flanges for Strength & Fitment

• TIG Welded for Durability Under Boost

• 5-Layer Silicone Boots Rated for 100+ PSI

• Built on Precision Engine Jigs for Factory-Like Fit

• 100% Made in the USA 🇺🇸

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🔧 Add Your Turbos & Go!

This piping kit is engineered for use with a T3-based HE351 or S300 wastegated turbo and a T6 S400 atmospheric charger. Customize your powerband with your choice of cast, billet, or 5-blade compressor wheels.

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💥 Say goodbye to lag and hello to lightning-quick spool, massive airflow, and cold EGTs.

Order your Stainless Diesel 2G Swap Twin/Compound Turbo Piping Kit today and unleash the full potential of your 5.9L Cummins!