HSP Diesel 019-HSP One Piece Cast Manifolds for 2001-2016 Chevrolet/GMC Duramax.

Why You Need the HSP Diesel Coated Billet Manifolds?
The factory manifolds are restrictive from the start. HSP Diesel recognized early on that these needed to be addressed if you wanted to make more power. Factory manifolds are also known to fail due to cracks, warping, and broken bolts. The HSP Diesel Manifolds solve these issues while looking better and increasing performance.

What Makes the HSP Diesel Coated Billet Manifolds Different?
The HSP Diesel Coated Billet Manifolds are cast using high-strength steel and finished on a 5-axis CNC for a perfect fit. This precision machining maximizes flow through a more open port design, eliminating the common flow restriction found in the factory driver-side manifold. The one-piece construction provides superior strength and resistance to cracking or warping compared to multi-piece welded designs. The low-profile form also provides extra clearance for custom routing. These manifolds work with factory-style up-pipes and come ceramic coated for heat protection rated up to 2,000 Degrees F.

What's Included:

• (1) LB7-LML One Piece Manifold - Driver (HSP-IN-660-D)
• (1) LB7-LML One Piece Manifold - Passenger (HSP-IN-660-P)
• (2) 1/8 Inch NPT Brass Plug (RFB-811-RFAB)
• (1) Manifold Gasket Set (RFB-820-RFAB)
• (12) M10x1.5x25mm Socket Head Cap Bolts (RFB-833-RFAB)
• (14) M10x1.5x35mm Bolts (RFB-834-RFAB)
• (1) M10x1.5x80mm Bolt (RFB-859-RFAB)
• (1) M10x1.5x100mm Bolt (RFB-860-RFAB)

Vehicle Fitment:

• LB7: 2001-2004 (VIN Code 1)
• LLY: 2004.5-2005 (VIN Code 2)
• LBZ: 2006-2007 (VIN Code 2 or D)
• LMM: 2007.5-2010 (VIN Code 6)
• LML: 2011-2016 (VIN Code 8)
• Note: The engine code is determined by the 8th character of the VIN number, and the 10th character designates the model year.

Overview:

• Cast Steel Construction
• CNC Machined for Precision
• High-Flow, Low-Profile Design
• Compatible with Factory Up-Pipes
• Includes New Gaskets and Grade 8 Hardware
• 2,000 Degrees F Ceramic Coating for Superior Heat Protection
• Eliminates Flow Restriction in Factory Driver-Side Manifold

HSP No BS Limited Lifetime Warranty
At HSP, we believe in our products and stand firmly behind every single one that leaves our facility. For years, we've taken care of nearly everything our customers have needed - even without a formal warranty. That dedication hasn't changed; we've simply made it official. Our No BS Warranty outlines exactly how we back our products.