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2017-2019 L5P Duramax 3 1/2" Down Pipe Kit

For Off Road Competition Use Only.
-3 1/2" Down Pipe
-Ceramic Coating
-Heat Wrap and Clamps
-(3) Pre-built Heater Hose Assemblies with quick connect fittings
-Y-Bridge Port Block Off Plate
-Exhaust Manifold Block Off Plate
-Thermostat Bridge Billet Block off with O-Ring
-9th Injector Plug
-Coolant line Plugs & Caps
-Necessary Gaskets
Shipping: This Product cannot ship to the state of California
Pricing: $698.00



Replace the restrictive crushed factory down pipe and DOC on your 2017-2019 L5P Duramax with this full 3 1/2" Down Pipe. Connects to the factory turbo outlet flange and mates with any aftermarket Race exhaust system front pipe with the 4 bolt style flange connection. Black Ceramic Coated and Heat wrapped. Down Pipe does not include bungs for sensors and is for racing use only. KIT with EGR Fix included.

**For Off Road Competition Use Only!

**Aftermarket Off Road Race Tuning is required to use this down pipe.

Product Notes

Does not include bungs for sensors; For Off Road Competition Use Only.


Shipping Information

  • Item Requires Shipping
  • 11.0 lbs.
  • W10.0000” x H10.0000” x L30.0000”
  • This Product cannot ship to the state of California

Customer Reviews

Comment Total Reviews (1)

2017 L5P
  • Currently 5/5 Stars

Reviewed by: David 02/06/2019 06:27PM

Product ownership: I do not own this product

Purchased from: Wehrli Custom Fabrication

Installed this to a 17 GMC Sierra with 5 inch exhaust and PPEI tuning. Super easy install and woke this truck up. Sounds amazing as well. Really cleans up the engine bay. Great work guys!

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