Comprehensive Performance Kit for Your Duramax

Are you on the hunt for a performance kit that truly has it all? Look no further! Our kit features a mandrel-bent 4.5-inch intake tube designed to maximize airflow, paired with HSP's signature heat shield box to keep unwanted hot air from sneaking into your cold air intake. Remember, every 1-degree rise in intake air temperature can lead to a 3hp loss—so keeping things cool is key!

Key Features

• High-Quality Tubing: Enjoy 3-inch mandrel-bent hot side and cold side tubes, along with our max flow Y-bridge and turbo mouthpiece.
• Robust Design: The factory hot side intercooler tube on your 2011-2016 Duramax is known for its weaknesses. Its two-piece design, with crimped-on boots, often fails under heat and pressure. Don’t wait until it leaves you stranded!
• Reliable Replacement: Our kit replaces all the failure-prone piping, incorporating race-proven 5-layer silicone boots for years of worry-free driving.
• Performance Gains: With our Max flow Y-bridge and turbo mouthpiece, you’ll notice improved performance while keeping engine temperatures down.
• Durable Up Pipes: We include factory replacement 2-inch up pipes made from .120-inch wall tubing and the toughest bellows on the market, ensuring they stand the test of time.
• Sleek Coolant Tank: Keep your engine bay looking sharp with our all-aluminum coolant tank, featuring a built-in low coolant sensor.
• Colorful Touch: To finish it off, we’ve added an upper coolant tube that not only adds a splash of color but also provides extra room for dual pumps, preventing any hose rubbing against 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 bolts
• 2x M6x1.0x25mm flange bolts
• 4x 1/2 inch worm gear clamps
• 1x 5/8 inch worm gear clamp
• 2x 1/8 inch NPT brass plugs
• 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 plugs
• 2x M4x.7x10mm bolts
• 3x 10-3x 3/8 inch button head screws
• 4x 1/8 inch aluminum rivets
• 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
• 2x up-pipe gaskets (turbo side)
• 1x 1.75 inch x 3 inch straight boot
• 1x 1.75 inch 90-degree boot
• 2x up-pipe gaskets (manifold side)
• 4x 1 3/4 inch worm gear clamps

Compatibility

This kit is compatible with:

• LML: 11+ VIN Code 8

Wondering how to find your VIN code? The engine code is determined by the 8th character of the VIN number, while the 10th character indicates the year of your truck.