Your All-in-One Duramax Upgrade Kit

Are you searching for a kit that truly has everything you need? Look no further! Our kit features a mandrel bent 4 1/2 inch intake tube designed to maximize airflow, paired with HSP's signature heat shield box that keeps unwanted hot air away from your cold air intake. Did you know that for every 1-degree increase in intake air temperature, you could lose up to 3 horsepower? That’s why this kit is a game changer!

High Flow Turbo Mouthpiece

One of the standout features of this kit is HSP's high flow turbo mouthpiece. This clever component allows you to reroute your factory PCV system and remove the factory resonator box, which helps prevent engine oil from gumming up your turbo and intake system. With 3-inch mandrel bent hot side and cold side tubes, along with our max flow Y-bridge and turbo mouthpiece, you’re set for impressive performance.

Say Goodbye to Factory Failures

If you own a 2011-2016 Duramax, you know how notorious the factory hot side intercooler tube can be for failure. The two-piece design with crimped boots is prone to breaking under heat and pressure, leaving you stranded. Our kit replaces all those failure-prone pipes with durable options, including race-proven 5-layer silicone boots that promise years of worry-free driving. Teaming this with our Max flow Y-bridge and turbo mouthpiece means you can expect a noticeable boost in performance while keeping engine temperatures in check.

Robust Exhaust Solutions

To help get those exhaust gases flowing smoothly out of your engine, we've included factory replacement 2-inch up pipes. Crafted from .120 inch wall tubing and featuring the toughest bellows on the market, these up pipes are built to last as long as your truck. Plus, we've added a factory replacement coolant tank to keep your engine bay looking sharp!

Stylish and Functional Coolant Tank

Our coolant tank boasts an all-aluminum design with an integrated low coolant sensor. To add a splash of color to your engine bay, we’ve included our upper coolant tube, which also provides extra space for dual pumps, preventing any chance of the hose rubbing against the wheel.

What’s Included

• 3x 3 inch x 4 inch straight boot
• 7x 3 inch t-bolt clamp
• 1x 2.25 - 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 clamp
• 2x 1/8 inch NPT brass plug
• 1x rear cover coolant plug o-ring
• 1x coolant plug o-ring
• 1x 3/4 inch to 5/8 inch heater hose connector
• 2x 3/8 inch coolant plug
• 4x M4x.7x10mm bolt
• 3x 10-32 x 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 clamp
• 1x low coolant sensor
• 1x 1/2 inch NPT float switch
• 1x 1.75 inch x 3 inch straight boot
• 2x up-pipe gasket (turbo side)
• 1x 1.75 inch 90 degree boot
• 2x up-pipe gasket (manifold side)
• 4x 1 3/4 inch worm gear clamps
• 5' of 5/8 inch PCV Hose
• 16 inch of Trim seal
• 14 inch of 1/2 inch heater hose

Compatibility

This kit is compatible with:

• LML: 11+ VIN Code 8

Curious about your VIN code? The engine code is determined by the 8th character of your VIN number, while the 10th character indicates the year of your truck.