2019-2024 Cummins S400 Turbo Kit w/ Manifold (C1924648390C2GK)

Smeding Diesel S400 Turbo Kit comes with everything you need to safely, effectively, and properly install a S400 series turbocharger on your Cummins. With the freedom to choose your own turbo and exhaust housing size for whatever your driving application may be. The fitment is precise, and the finish is perfectly polished with smooth mandrel bends for superior airflow and enhanced performance.

Part Number: C1924648390C2GK

• Smeding S400 series Turbocharger
• Smeding T4 3-piece Exhaust Manifold
• 4" Down Pipe
• 5" Air Intake kit w/ filter
• Oil Feed Line
• Oil Drain Line,
• Intercooler piping
• All necessary hardware

Cast vs. Billet vs SXE-R:

• The cast aluminum compressor wheel in this kit has been around for many years and is a more budget-friendly option
• CNC-machined Billet compressor wheel is much more advanced, utilizing stronger material with a more aggressive design, giving you faster spool-up and more power
• SXE-R wheel is the top-tier compressor option, lightweight and geared toward competition, Its quick-spooling characteristics would make it a sound choice for towing, daily driving, or playing at the drag strip

• T4 .90 exhaust housings are not recommended for the 6.7L Cummins
• The 1.0 T4 housing is the best option for the 6.7 Cummins

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  What’s the Difference between 0.9, 1.0, 1.10

  Referring to the A/R (Area/Radius) ratio of the exhaust housing. A small A/R (0.9) means exhaust gases flow through a smaller area, creating quicker spool but also increase backpressure. A larger A/R (1.10) has a bigger exhaust housing, allowing more exhaust flow, reducing backpressure, and support higher horsepower, but at the cost of a slower spool-up. 1.00 is balanced for street & performance builds.