HSP Diesel 2013-2016 LML Duramax Max Air Flow Bundle - 583-2-HSP

HSP 2013-2016 Chevrolet / GMC Max Air Flow Bundle

Part Number: 583-2-HSP

The 583-2-HSP, better known as the Max Air Flow Bundle, is designed for the 2013-2016 LML Duramax-equipped Chevrolet and GMC trucks. This bundle is a comprehensive solution that upgrades key airflow components and delivers noticeable performance improvements.

What Is the Max Air Flow Bundle for the LML Duramax?

This bundle includes the core HSP components responsible for freeing up restrictions in the stock system. It replaces parts that commonly bottleneck performance and wraps them into a single discounted package for added value.

Hot Side Intercooler Pipe

The HSP Hot Side Tube is upgraded to 3" mandrel-bent aluminum for up to 40% more flow and greatly reduced turbulence. It's a durable and visually appealing replacement for the failure-prone stock unit.

Max Flow Bridge and Cold Side Tube

The two-piece CNC-machined Max Flow Bridge is built for a boost-tight seal and easy installation. It's paired with the HSP Cold Side Tube for optimized airflow through the charge system.

VGT Intake Mouthpiece

Handmade with larger diameter bends and an O-ring seal, this intake mouthpiece improves turbo response and prevents air leaks—making it a key component of the overall performance system.

Cold Air Intake

This intake system includes a 4.5" mandrel-bent tube, HSP's open heat shield box, and a high-flow filter. It contributes up to 20 additional horsepower and helps reduce intake temps—where every degree matters.

Passenger Side Up-Pipe

Constructed from heavy-wall 304 stainless steel with sleeved bellows, this high-flow up-pipe improves spool-up and durability compared to the restrictive factory design.

Whats Included:

• 1x Hotside Tube (HSP-IN-218)
• 1x Bridge (HSP-IN-223)
• 1x Coldside (HSP-IN-228)
• 1x Fabricated Turbo Inlet (HSP-IN-216-2)
• 1x 4.5" Cold Air Intake Tube (HSP-IN-150-16)
• 1x 4.5" Hole Heatshield Box (HSP-IN-749)
• 1x Heatshield Box Lid (HSP-IN-746)
• 1x 2" Stock Replacement Up Pipe - Passenger - Ceramic Coated (HSP-IN-280-C)
• 1x 4.5" Filter (RFB-413-RFAB)
• 4x 1/8" Aluminum Rivet (RFB-098-RFAB)
• 3x 10-32 x 3/8" Button Head Screws (RFB-099-RFAB)
• 16x Trim Lock (RFB-411-RFAB)
• 1x Heatshield Box Lid Backer Plate (RFB-746-BP-RFAB)
• 4x M4x.7x10mm Bolt (RFB-901-RFAB)
• 1x 1/8" NPT Brass Plug (RFB-811-RFAB)
• 1x M6x1.0x16mm Flange Bolt (RFB-893-RFAB)
• 1x 4" T-Bolt Clamp (RFB-424-RFAB)
• 1x 4.5" T-Bolt Clamp (RFB-435-RFAB)
• 1x 4.5" - 4" Straight Boot (RFB-495-RFAB)
• 1x 2.25" T-Bolt Clamp (RFB-420-RFAB)
• 1x 3" T-Bolt Clamp (RFB-422-RFAB)
• 1x 3"x4" Straight Boot (RFB-430-RFAB)
• 1x 2.25" to 3" Reducer Boot (RFB-441-RFAB)
• 1x Up-pipe Gasket (Turbo Side) (RFB-821-RFAB)
• 1x Up-Pipe Gasket (Manifold Side) (RFB-822-RFAB)
• 1x Duramax Pre-Made Hose - Rubber (RFB-398-RFAB)
• 1x 5/8" Worm Gear Clamp (RFB-403-RFAB)
• 1x 1/2" Worm Gear Clamp (RFB-405-RFAB)
• 60x 5/8" PCV Hose (RFB-407-RFAB)
• 4x 3" T-Bolt Clamp (RFB-422-RFAB)
• 2x 3"x4" Straight Boot (RFB-430-RFAB)
• 1x 3/4" to 5/8" Heater Hose Connector (RFB-462-RFAB)
• 1x 3/8" Coolant Plug - Aluminum (RFB-808-RFAB)
• 1x Rear Cover Coolant Fitting (RFB-809-RFAB)
• 1x Coolant Plug O-Ring (RFB-813-RFAB)
• 2x M6x1.0x25mm Flange Bolt (RFB-896-RFAB)
• 4x M6x1.0x20mm Flange Bolt (RFB-897-RFAB)

Vehicle Fitment:

• LML: 2013-2016 (8th digit of VIN = 8)

How to Verify: The 8th character of the VIN indicates the engine code. The 10th character denotes the model year.

Note: This bundle is specifically engineered for 2013-2016 LML trucks. Despite a shared VIN digit, minor layout changes mean it is not compatible with earlier years.

Overview:

• Increased performance and throttle response
• High-flow Cold Air Intake system
• 3" mandrel-bent hot and cold side tubes
• Heavy-duty stainless steel up-pipe
• Precision CNC-machined Max Flow Bridge
• Handmade, O-ring-sealed components
• Powder coat finish options available

Our Warranty

HSP “No BS” Limited Lifetime Warranty
We stand behind our products with a lifetime guarantee. For warranty process and details, click here.