Upgrade Your Engine's Breathing

This kit is designed to help both you and your engine breathe a little easier. With a mandrel bent 4.5-inch intake tube, you’ll experience significant airflow improvements. Plus, HSP's signature heat shield box keeps unwanted hot air from sneaking into the cold air intake. Just a 1-degree rise in intake air temperature can lead to a 3hp loss, so keeping things cool is key!

High Flow Turbo Mouthpiece

Included in this kit is HSP's high flow turbo mouthpiece, which allows you to reroute your factory PCV system while removing the factory resonator box. This means no more engine oil gumming up your turbo and intake system. You’ll also find 3-inch mandrel bent hot side and cold side tubes, along with our max flow Y-bridge and turbo mouthpiece for optimal performance.

Say Goodbye to Factory Failures

If you own a 2011-2016 Duramax, you're likely aware of the issues with the factory hot side intercooler tube. Its two-piece design, complete with crimped-on boots, is prone to failure under heat and pressure. The factory cold side isn’t much better, being made from plastic with a clamping system that leaves a lot to be desired.

Reliable Replacement Parts

This kit replaces all those failure-prone components and comes with our race-proven 5-layer silicone boots, ensuring years of worry-free driving. With the Max flow Y-bridge and turbo mouthpiece included, you can expect performance gains while keeping engine temperatures in check. We’ve also added a robust 2-inch passenger side up pipe, featuring .120-inch tubing and the best bellow on the market.

Included Components

• 3x 3 inch x 4 inch straight boot
• 7x 3 inch t-bolt clamps
• 1x 2.25 inch - 3 inch t-bolt clamp
• 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
• 1x 1/2 inch worm gear clamp
• 1x 5/8 inch worm gear clamp
• 2x 1/8 inch NPT brass plugs
• 1x rear over coolant plug
• 1x coolant plug o-ring
• 1x 3/4 inch to 5/8 inch heater hose connector
• 1x 3/8 inch coolant plug
• 4x M4x.7x10mm bolts
• 3x 10-32 x 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 up-pipe gasket (turbo side)
• 1x up-pipe gasket (manifold side)
• 5 inches of 5/8 inch PCV hose
• 16 inches of trim seal

Compatibility

This kit is compatible with:

• LML: 11+ VIN Code 8

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