Complete Performance Kit for Your Duramax

Are you on the hunt for a comprehensive kit that truly has it all? Look no further! This kit boasts a mandrel bent 4.5-inch intake tube, designed to maximize airflow and boost your engine’s performance. Plus, with HSP's signature heat shield box, you can say goodbye to unwanted hot air sneaking into your cold air intake. Remember, for every 1-degree rise in intake air temperature, you could lose up to 3 horsepower!

High Flow Turbo Mouthpiece

Included in this kit is HSP's high flow turbo mouthpiece, giving you the opportunity 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—just smooth sailing ahead!

Durable Tubing for Reliability

We understand the frustration of dealing with factory parts that just can’t keep up. The hot side intercooler tube on your 2011-2016 Duramax is known for its weaknesses. The two-piece design with crimped boots often fails under heat and pressure, leaving you stranded. Our kit replaces all those failure-prone pipes with robust 3-inch mandrel bent hot and cold side tubes. With our race-proven 5-layer silicone boots, you’ll enjoy years of worry-free driving. Combine this with our Max Flow Y-bridge and turbo mouthpiece, and you’ll see notable performance gains while keeping engine temperatures in check.

Efficient Exhaust Gas Management

To help clear out exhaust gases efficiently, we’ve included factory replacement 2-inch up pipes. Our up pipes feature .120-inch wall tubing and the toughest bellows available, ensuring they last as long as your truck does. Plus, we’ve also added a factory replacement coolant tank to keep your engine bay looking sharp.

Stylish and Functional Coolant Tank

Our coolant tank is crafted from all-aluminum and includes a low coolant sensor for added peace of mind. To give your engine bay a splash of color, we’ve topped it off with an upper coolant tube. This thoughtful addition not only enhances aesthetics but also provides extra room for dual pumps, reducing the risk of hose rubbing against the wheel.

What’s Included in the Kit?

• 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 premade 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 clamp
• 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
• 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 radiator cap
• 1x 1 inch worm gear clamp
• 1x low coolant sensor
• 1x 1/2 inch NPT float switch
• 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
• 2x up-pipe gasket (turbo side)

Compatibility

This kit is compatible with:

• LML: 11+ VIN Code 8

Curious about your VIN code? The engine code is determined by the 8th character of the VIN number, and the 10th character indicates the year of your truck.