Engine Breathing Made Easy

This kit is designed to help both you and your engine breathe a little easier. It features a mandrel-bent 4.5-inch intake tube that significantly boosts airflow, paired with HSP's signature heat shield box. This clever addition keeps unwanted hot air from entering the cold air intake, ensuring your engine runs smoothly. Remember, for every 1-degree rise in intake air temperature, you could lose about 3 horsepower!

Turbo Mouthpiece Benefits

Included in this kit is HSP's high-flow turbo mouthpiece, which allows you to reroute your factory PCV system and ditch the factory resonator box. This means less engine oil gumming up the turbo and intake system, leading to a cleaner, more efficient operation. The kit also includes 3-inch mandrel-bent hot and cold side tubes, along with our max flow Y-bridge and turbo mouthpiece.

Say Goodbye to Factory Failures

If you own a 2011-2016 Duramax, you might be familiar with the notorious failure of the factory hot side intercooler tube. Its two-piece design, with crimped-on boots, often succumbs to heat and pressure, leaving you stranded. The factory cold side has its own issues, being made of plastic with a less-than-reliable clamping system.

Reliable Replacement Components

This kit replaces all those failure-prone pipes with durable alternatives. You’ll receive race-proven 5-layer silicone boots, ensuring years of worry-free driving. With our Max flow Y-bridge and turbo mouthpiece, you can expect noticeable performance gains while keeping engine temperatures in check. We’ve also included a robust 2-inch passenger side up-pipe featuring .120-inch tubing and the best bellow available 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 Reducer boot
• 1x 2.25 inch T-bolt clamp
• 1x Duramax pre-made hose
• 1x M6x1.016mm 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 cover coolant plug
• 1x coolant plug O-ring
• 1x 3/4 inch to 5/8 inch heater hose connector
• 1x 3/8 inch coolant plug
• 2x M4x7x10mm 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)

Compatibility

This kit is compatible with:

LML: 11+ VIN Code 8

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