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HSP Diesel 2011-2012 Silverado/Sierra 2500/3500 Deluxe Max Air Flow Bundle Kingsport Grey
SKU: 584-1-DG-GVJG
$3,924.68 CAD
Shipping calculated at checkout.
Looking for a kit that has it all? Featuring a mandrel bent 4 1/2 inch inch intake tube for massive airflow gains, with HSP's signature heat shield box eliminating unwanted hot air entering the cold air intake. For every 1-Degree increase in intake air temperature will result in a 3hp loss. This kit also features HSP's high flow turbo mouthpiece.
This turbo mouthpiece will give you the ability to reroute your factory PCV system and remove the factory resonator box, eliminating unwanted engine oil gumming up the turbo and intake system. Featuring 3-inch mandrel bent hot side and cold side tubes with our max flow Y-bridge and turbo mouthpiece.
The factory hot side intercooler tube on your 2011-2016 Duramax is notorious for failure. The two-piece design from the factory has crimped on boots that have a tendency to fail under heat and pressure, it's only a matter of time before it leaves you on the side of the road. The factory cold side also has its limitations and is made of plastic with an unreliable clamping system.
This kit replaces all the failure-prone piping and will come with our race-proven 5 layer silicone boots to give you years of worry-free driving. Companied with our Max flow Y-bridge and turbo mouthpiece you can expect to see gains in performance while keeping engine temps down. To help get the exhaust gases out of the engine, this kit includes our factory replacement 2 inches up pipes. Our up pipes use .120 inch wall tubing with the toughest bellows on the market to ensure they last as long as your truck. Also included is our factory replacement coolant tank to keep your engine bay looking good.
Our coolant tank features an all-aluminum design with an incorporated low coolant sensor. To top it all off we added our upper coolant tube to add a little extra color to your engine bay. This tube will also give additional room for dual pumps eliminating the possibility of the hose rubbing the wheel.
Included Components:
- 3x 3 Inch x 4 Inch straight boot
- 7x 3 Inch t-bolt clamps
- 1x 2.25 Inch - 3 Inch reducer boot
- 1x 2.25 Inch t-bolt clamp
- 1x Duramax Pre-made hose
- 1x M6x1.0x16mm flange bolt
- 4x M6x1.0x20mm flange bolt
- 2x M6x1.0x25mm flange bolt
- 4x 1/2 inch worm gear clamps
- 1x 5/8 inch worm gear clamps
- 2x 1/8 inch NPT brass plug
- 1x Rear cover coolant plug
- 1x coolant plug o-ring
- 1x 3/4 Inch to 5/8 inch heater hose connector
- 2x 3/8 inch coolant plug
- 2x M4x.7x10mm bolt
- 3x 10-3x 3/8 inch button head screw
- 4x 1/8 inch aluminum rivet
- 1x 4 Inch - 4.5 Inch reducer boot
- 1x 4 Inch t-bolt clamp
- 1x 4.5 Inch t-bolt clamp
- 1x 4.5 Inch filter
- 1x radiator cap
- 1x 1 inch worm gear clamps
- 1x low Coolant sensor
- 1x 1/2 inch NPT float switch
- 2x up-pipe gasket (turbo side)
- 1x 1.75 Inch x 3 Inch straight boot
- 1x 1.75 Inch 90 Degree Boot
- 2x up-pipe gasket (manifold side)
- 4x 1 3/4 Inch worm gear clamps
Compatible With:
LML: 11+ VIN Code 8
How Do People Know Vin Code? Engine code is dictated by the 8th character of the VIN number. The 10th character is the year of the truck.
questions we get about hsp diesel daily:
Who is HSP Diesel and what makes their products different?
HSP Diesel builds high-flow, made-in-the-USA diesel performance hard parts that solve real-world airflow restrictions. Their components are CAD-designed, flow-tested, and engineered for durability, clean fitment, and consistent performance. Customers choose HSP because the quality, welds, powder coat options, and fitment are more refined than generic diesel aftermarket parts.
Are HSP Diesel products compatible with my truck?
Most HSP Diesel components are designed for GM Duramax platforms (LB7, LLY, LBZ, LMM, LML, L5P). Each product page lists exact year and engine compatibility. If you're not sure which Duramax engine you have, send us your VIN and we’ll gladly confirm fitment before you order.
Do HSP Diesel parts improve performance?
Yes. Upgrades like intercooler pipes, Y-bridges, turbo inlet kits, and intakes dramatically reduce airflow restriction. Most owners see faster spool, cooler EGTs, smoother towing performance, and better throttle response—even on otherwise stock trucks.
Do I need tuning after installing HSP Diesel parts?
Most HSP airflow parts (intakes, charge pipes, Y-bridges, turbo mouthpieces) do not require tuning to install or drive. However, a tune may help the truck take full advantage of the increased airflow. If a part requires tuning—such as a turbo upgrade—the product page will clearly note it.
Are HSP Diesel parts emissions compliant?
Many HSP Diesel components work with factory emissions systems in place. Some turbo-related or race-use parts may not be emissions compliant. Always read the emissions note on the product page and follow local laws before installation.
How long does it take for HSP Diesel parts to ship?
Most HSP parts are built and powder-coated after you order. Standard colors ship sooner, while custom colors may require 2–4+ weeks depending on workload. Lead times are shown on each product page and updated frequently.
What powder coat colors are available?
HSP offers a wide range of standard colors (black, red, white, blue, etc.) plus custom powder coat finishes. Custom colors may add cost and lead time. If you're trying to match an existing part, send us a photo and we can help you choose the closest match.
Do HSP Diesel kits come with everything needed for installation?
Most HSP parts include the clamps, boots, brackets, and hardware required for a clean install. Larger systems—like turbo kits or intercooler upgrades—may require additional supporting parts. Each product page lists everything included in the kit.
Are HSP Diesel parts compatible with other aftermarket brands?
In most cases, yes. As long as the parts use compatible diameters and mounting points, HSP Diesel components integrate well with other brands of turbos, intakes, intercooler systems, and fueling components. If you already have mods installed, tell us what’s on the truck and we’ll check compatibility.
Will HSP Diesel parts help with towing?
Absolutely. Improved airflow reduces EGTs, increases turbo response, and helps the truck pull more consistently under load. Many daily drivers and towing-focused Duramax owners upgrade to HSP specifically for cooling and drivability gains.
What warranty do HSP Diesel products include?
HSP Diesel provides a warranty against workmanship and material defects. If a part arrives damaged or defective, contact us with photos and your order number and we’ll assist in getting it corrected.
Can I install HSP Diesel parts myself?
Many components—like charge pipes, intakes, and coolant tanks—are DIY-friendly. More complex installs (Y-bridges, turbo kits, or tight-tolerance piping) may require professional installation. Review the instructions to make sure you're comfortable with the job.
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