This kit will allow you and your engine to breathe easy. 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. We have also included one of our 2-inch passenger sides up pipes featuring .120 inch tubing and the best bellow on the market.
The factory up-pipe is prone to failure at the riser caused by excessive heat and pressure.

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 bolt
• 2x M6x1.0x25mm flange bolt
• 1x 1/2 inch worm gear clamp
• 1x 5/8 inch worm gear clamp
• 2x 1/8 inch NPT brass plug
• 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 bolt
• 3x 10-32 x 3/8 inch button head screws
• 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 up-pipe gasket (turbo side)
• 1x up-pipe gasket (manifold side)
• 5 inch of 5/8 inch PCV hose
• 16 inch of Trim seal

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.