2004.5-2005 Chevrolet / GMC Deluxe Max Air Flow Bundle - HSP Diesel - 284-HSP

Looking for a kit that has it all? Featuring a mandrel-bent 4.5-inch LBZ style 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 (PCV re-route sold separately see 003-1-HSP). Also included is our 3-inch mandrel bent hot side and cold side tubes with our easy to install two-piece Y-bridge with race-proven 5 layer silicone boots so you can be ensured a great fit that won't let you down. The factory hot side intercooler tube is only 2.25 inches in diameter and has a 90-degree boot at the intercooler that is prone to failure.

With this routing there is a possibility of the hot side intercooler tube rubbing on the power steering line, causing the line to rub a hole in the tube resulting in a boost leak. HSP's solution to this problem is to run the hot side tube directly into the intercooler resulting in lower temperatures, better airflow, and added clearance in tight places.

Our 3-inch cold side tube will ensure your engine gets all the air it wants. Ours bolted together two-piece Y-bridge will make installation a breeze and ensure a leak-free seal that won't leave you on the side of the road. 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.

When it comes to styling we have included our forward-facing thermostat housing with coolant return to help keep your VGT turbo running cool. Is your factory coolant tank starting to show its age? 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.

Included Components:


2x 3 inch x 4 inch Straight Boot

5x 3 inch T-Bolt Clamps

1x 2.25 inch - 3 inch Reducer Boot

1x 2.25 inch T-bolt Clamp

1x Bridge Neck O-Ring

2x Bridge Neck Stud

2x Bridge neck 12-Point Nut

2x 5/8 inch Worm Gear clamps

1x 1/8 inch NPT Brass Plug

2x M4 x .7x10mm Bolt

3x 10-32 x 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 Turbo Inlet O-ring

1x Radiator Cap

5x 1/2 inch Worm Gear Clamps

1x 1 inch Worm Gear Clamp

1x 1/2 inch NPT Float Switch

1x Low coolant sensor

1x Thermostat Housing O-ring

3x M6x1.0x35mm Flange Bolts

6x M6 Fender Washers

3x M6 Nylon Lock Nut

4x M8x1.25-25mm Socket Cap Bolt

4x M8x1.0-18mm Socket Cap Bolt

1x M14x1.5 to 3/8 inch Hose Barb

1x M14x1.5 Metric Port Plug

1x Metric Bonded Seal 14mm

1x 1.75 inch x 3 inch Straight Boot

1x 1.75 inch 90 degree Boot

2x Up-Pipe Gasket (Turbo Side)

2x Up-Pipe Gasket (Manifold Side)

4x 1 3/4 inch Worm Gear Clamps

16 inch of Trim seal

1 1/2' of 3/8 inch heater hose


Compatible with:

LLY: 04.5-05 VIN Code 2
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.