HSP Diesel 2015-2016 LML Duramax Deluxe Max Air Flow Bundle - 584-3-HSP

HSP 2015-2016 Chevrolet / GMC Deluxe Max Air Flow Bundle

Part Number: 584-3-HSP

The 584-3-HSP is best known as the Deluxe Max Air Flow Bundle for the 2015-2016 LML Duramax-equipped Chevrolet and GMC trucks. This bundle includes every performance-enhancing product HSP Diesel makes for the LML, all in one complete package.

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

This kit is ideal for those wanting to upgrade their entire system at once. Whether you're sticking with your factory turbo and injectors or planning for drop-in replacements, this bundle is engineered to maximize factory performance and ensure long-term reliability.

Cold Air Intake

Built with a 4.5" intake tube and high-flow filter, this system brings in maximum airflow while reducing heat soak with an open design and heat shield box. Dyno testing shows an average gain of 20 horsepower and 58 lb-ft of torque.

Hot Side Intercooler Tube

Our 3" mandrel-bent hot side tube eliminates the factory failure-prone lower boot. It provides a straight connection to the intercooler, reducing turbulence and increasing airflow by up to 40%.

Max Flow Bridge and Cold Side Tube

The Max Flow Bridge features a two-piece, O-ring sealed design for easy installation and improved boost integrity. Paired with a 3" cold side mandrel-bent tube, this setup enhances flow and reliability under high boost conditions.

Upper Coolant Tube

Made from metal to replace the failure-prone rubber factory hose, this tube is available in various powder coat finishes and improves both durability and engine bay aesthetics.

2" Replacement Up-Pipes

Constructed from 304 stainless steel with sleeved bellows, these heavy-wall up-pipes improve reliability, reduce EGTs, and enhance turbo spool-up.

VGT Intake Mouthpiece

Designed for performance and precision, this O-ring style mouthpiece provides a superior seal and prevents unfiltered air or boost leaks. Hand-assembled and built for high flow support.

Factory Replacement Coolant Tank

Factory plastic coolant tanks are prone to cracking and discoloration. Ours is made from CNC-bent and cut aluminum, hand-assembled, and includes OEM provisions and the factory low coolant sensor.

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 Factory Replacement Tank (HSP-IN-708-16)
• 1x Radiator Hose Tube w/Logo (HSP-IN-239-2)
• 1x 2" Stock Replacement Up Pipe - Driver- Ceramic Coated (HSP-IN-281-C)
• 1x 2" Stock Replacement Up Pipe - Passenger - Ceramic Coated (HSP-IN-280-C)
• 1x 4.5" Filter (RFB-413-RFAB)
• 4x 1/8in NPT Brass Plug (RFB-098-RFAB)
• 3x M6x1.0x16mm Flange Bolt (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 1/8in NPT Brass Plug (RFB-811-RFAB)
• 1x M6x1.0x16mm Flange Bolt (RFB-893-RFAB)
• 1x Radiator Cap (RFB-806-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)
• 3x 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 3in T-Bolt Clamp (RFB-422-RFAB)
• 2x 3"x4in Straight Boot (RFB-430-RFAB)
• 1x 3/4in to 5/8in Heater Hose Connector (RFB-462-RFAB)
• 1x 3/8in Coolant Plug - Aluminum (RFB-808-RFAB)
• 1x LML Rear Cover Coolant Fitting (RFB-809-RFAB)
• 1x LML Coolant Plug O-Ring (RFB-813-RFAB)
• 2x M6x1.0x25mm Flange Bolt (RFB-896-RFAB)
• 4x M6x1.0x20mm Flange Bolt (RFB-897-RFAB)
• 14x 1/2in Heater Hose (RFB-400-RFAB)
• 3x 1/2in Worm Gear Clamp (RFB-405-RFAB)
• 1x 1in Worm Gear Clamp (RFB-406-RFAB)
• 1x Low Coolant Sensor LML (RFB-460-RFAB)
• 1x 3/8in Coolant Plug - Aluminum (RFB-808-RFAB)
• 4x 1 3/4in Worm Gear Clamp (RFB-408-RFAB)
• 1x 1.75in 90degree Boot - Rubber (RFB-433-RFAB)
• 1x 1.75x3 Straight Boot - Rubber (RFB-437-RFAB)

Special Note:

HSP Diesel is currently transitioning to new boot designs. Your kit may arrive with boots that do not feature logos. This change ensures we maintain the highest quality and availability for all orders.

Vehicle Fitment:

• LML: 2015-2016 (8th digit of VIN = 8)

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

Note: This bundle is designed specifically for 2015-2016 model years due to layout differences in the engine bay. Please verify your model year before ordering.

Overview:

• Increased performance and airflow
• Maximizes OEM turbo and injector capability
• High-flow Cold Air Intake with Heat Shield
• 3" Mandrel-bent hot and cold side tubes
• 5x layer silicone boots for long-lasting durability
• Powder coat options available for a custom look
• Replaces known weak points in the factory system

Our Warranty

HSP “No BS” Limited Lifetime Warranty
We believe in our products and back every single one that leaves our facility. For full warranty terms, support info, and claims process, click here.