HSP Diesel

HSP Ceramic Billet Exhaust Manifolds 2001-2016 Duramax

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  • Regular price $1,171.99
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This product may have a lead time, please confirm with sales@dieselpartdeals.com if in a rush

Why Would You Need the HSP Diesel Coated Billet Manifolds?
The factory manifolds are restrictive from the get-go. HSP Diesel noticed quickly that these needed to be addressed if you wanted to make more power. The factory manifolds are also known to fail due to cracks, warping, and broken bolts. The HSP Diesel Manifolds address all of these issues while looking better and adding power.

What do the HSP Diesel Coated Billet Manifolds do differently?
To start the HSP Diesel Coated Billet Manifolds are machined from 1018 steel. This means you have the maximum flow due to a more open port design increasing the flowability of the exhaust and the common flow restriction that is found in the driver's side manifold. The design of the HSP Diesel Coated Billet Manifolds is also low profile meaning that you get some extra room if you need to worry about the custom routing of parts. The HSP Diesel Coated Billet Manifolds work with factory-style Up-pipes and come ceramic coated for superior heat protection that is good up to 2000 degrees.

What comes with the HSP Diesel Coated Billet Manifolds?

  • (1) Drivers Side Billet Ceramic Coated Manifold
  • (1) Passenger Side Billet Ceramic Coated Manifold
  • (16) M10x1.5x35MM
  • (12) M10x1.5x25mm
  • (1) Passenger Side Gasket
  • (1) Drivers Side Gasket
  • (2) 1/8" NPT Brass Plug

What Does the HSP Diesel Coated Billet Manifolds fit?

  • LB7: 01-04 VIN Code 1
  • LLY: 04.5-05 VIN Code 2
  • LBZ: 06-07 VIN Code 2 or D
  • LMM: 07.5-10 VIN Code 6
  • LML: Vin Code 8

How do people know the VIN code?
Engine code is dictated by the 8th character of the VIN number. The 10th character is the year of the truck.


  • 1018 Steel
  • CNC machined
  • High flow low profile design
  • Works with factory up pipes
  • Includes new gaskets and grade 8 hardware
  • 2,000-degree ceramic coating for superior heat protection
  • Eliminates flow restriction in drivers side factory manifold

Our Warranty

At HSP we believe in our products and we stand firmly behind every single one that leaves our facility. For years we have taken care of almost everything & anything that our customers had issues with, but we didn't have a "set in stone" warranty. We have always gone above and beyond for our customers which set us apart from the rest. We will continue that same standard, but now we are taking things to the next level. Below you will be able to clearly read & understand our "No BS" warranty, its process, and the guidelines in which to follow.