2011-2012 Chevrolet / GMC Deluxe Max Air Flow Bundle - HSP Diesel - 584-1-HSP

Looking for a kit that has it all? 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. To help get the exhaust gases out of the engine, this kit includes our factory replacement 2 inches up pipes. Our up pipes use .120 inch wall tubing with the toughest bellows on the market to ensure they last as long as your truck. Also included is our factory replacement coolant tank to keep your engine bay looking good.
Our coolant tank features an all-aluminum design with an incorporated low coolant sensor. To top it all off we added our upper coolant tube to add a little extra color to your engine bay. This tube will also give additional room for dual pumps eliminating the possibility of the hose rubbing 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 bolt

2x M6x1.0x25mm flange bolt

4x 1/2 inch worm gear clamps

1x 5/8 inch worm gear clamps

2x 1/8 inch NPT brass plug

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 plug

2x M4x.7x10mm bolt

3x 10-3x 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 clamps

1x low Coolant sensor

1x 1/2 inch NPT float switch

2x up-pipe gasket (turbo side)

1x 1.75 inch x 3 inch straight boot

1x 1.75 inch 90 degree Boot

2x up-pipe gasket (manifold side)

4x 1 3/4 inch worm gear clamps




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.