HSP Deluxe Max Air Flow Bundle (2003-2004 Chevrolet / GMC)

The 184-HSP Or best known as the HSP Diesel Deluxe Max Air Flow Bundle is our all-in-one kit that comes with almost everything we offer for the 2003 and 2004 Chevrolet and GMC Duramax equipped trucks.

What is the HSP Diesel Deluxe Max Air Flow Bundle?

The HSP Diesel Deluxe Max Air Flow Bundle is our top-of-the-line bundle for the 2003 and 2004 Duramax trucks. This bundle includes everything that we offer for performance parts for the 2003 and 2004 trucks. The HSP Diesel Deluxe Max Air Flow Bundle includes the hotside intercooler tube, stock turbo inlet horn, Billet thermostat housing kit, coldside tube, HSP replacement up-pipes, coolant tank, and cold air intake. All of these together make for a kit that will take your truck to the maximum performance and it is going to look better than ever.

Tell us about the hot side intercooler tube in the HSP Diesel Deluxe Max Air Flow Bundle

The hotside intercooler pipe inside the HSP Diesel Deluxe Max Air Flow Bundle is one of the parts that changed the most from its factory counterpart. The first major change of the hotside intercooler tube in the HSP Diesel Deluxe Max Air Flow Bundle was the size, we went to a 3 Inch diameter pipe that has flow rates that are up to 40 Percent greater than stock. We also went to mandrel bends that are sweeping. What this means is that the air can flow through the pipe easier and creates less turbulence. All of this together creates the ability to make more power and have a better working charge air system. HSP Diesel also uses a straight style connection at the intercooler this removes a failure point that is common on the stock system.

Tell us about the stock turbo inlet horn in the HSP Diesel Deluxe Max Air Flow Bundle

The stock turbo inlet horn that comes with the HSP Diesel Deluxe Max Air Flow Bundle is also a piece that HSP Diesel is very proud of. This part has been bumped up to 3.5 Inch in diameter and has a much cleaner look to it. This part is Only made to be used with the stock turbo but the difference it can make in that stock turbo is drastic. With the larger size, we are able to remove that chokepoint that comes from the factory on these trucks. Giving you the ability to make more power with the stock turbo.

Tell us about the Billet thermostat housing kit in the HSP Diesel Deluxe Max Air Flow Bundle

The Billet thermostat housing kit is inside the HSP Diesel Deluxe Max Air Flow Bundle is more than just for looks. To start the Billet thermostat housing kit eliminates the coolant hose that crosses over the driver's side valve cover. The reason that happening is important is that that hose is not Only in the way all the time but it is also an eyesore when it comes to these engine bays. The Billet thermostat also gives you room for high-pressure fuel pump changes you may want to make.

Tell us about the coldside tube in the HSP Diesel Deluxe Max Air Flow Bundle

The cold side tube in the HSP Diesel Deluxe Max Air Flow Bundle is a large difference from the factory parts. To begin we went to a 3 Inch diameter tube to give us the biggest pipe we could fit and the most air we could fit inside that pipe. We then created the smoothest bends we could to just like the hot side tube reduce turbulence and increase flow. What this does is creates a much more free-flowing charge air system that can keep things much cooler than the factory pipes. The reason this is important is that the cooler the air is the denser it becomes. So if we can keep the air cool the amount of air we are able to have inside that pipe becomes much larger and in turn, this creates the ability to make more power.

Tell us about the 2 inch HSP replacement up-pipes in the HSP Diesel Deluxe Max Air Flow Bundle

The 2 inch HSP Diesel replacement up-pipes are so far ahead of stock you won't believe it. To start our up-pipes are made from heavy wall 304 stainless steel tubing. This means they are made to take abuse and heat cycles, these uppipes will last much longer than the factory style. This is also because we use heavy-duty sleeved bellows, as many of us know the bellows are the most common failure point in the factory up pipes and this takes care of that. All of this is inside our design of the up-pipes but not Only will they last longer but they also flow better due to all of these changes and our hand fit assembly.

Tell us about the Factory Replacement coolant tank in the HSP Diesel Deluxe Max Air Flow Bundle

The factory coolant tank in the Duramax trucks is not Only not pleasing to look at but often fails due to cracks and wear/tear. This is why HSP Diesel took to the drawing board using an all-metal design that can be powder-coated and looks so much better than the factory. The other thing that is different about the HSP Diesel-designed replacement tank is that it won't crack like the plastic factory one. This gives you everything you could want in the factory replacement. The replacement coolant tank also comes with all the provisions and fittings that it would need from the factory so this CNC cut piece can go to work as soon as it arrives.

Tell us about the Cold Air Intake in the HSP Diesel Deluxe Max Air Flow Bundle

The cold air intake on the HSP Diesel Deluxe Max Air Flow Bundle is the piece that ties the whole kit together. With everything working so hard to allow better flowing air and better looks we need something that will allow for everything to grab that air. The HSP Diesel cold air intake does exactly that. With a 4 1/2 Inch mandrel-bent tubing this intake has been proven to increase up to 20 horsepower and 58 pounds of torque on average. When combined with the rest of the HSP Diesel Deluxe Max Air Flow Bundle the difference that you will feel and see in your truck will be mind-blowing.

What comes with the HSP Diesel Deluxe Max Air Flow Bundle?

• (1) Cold Air Intake
• (1) Stock Turbo Inlet Horn
• (1) Hot Side Intercooler Tube
• (1) Billet Thermostat Housing Kit
• (1) Cold Side Tube
• (1) Driver Side Replacement Up-Pipe
• (1) Passenger Side Replacement Up-Pipe
• (1) Replacement Coolant Tank
• (1) Cold Air Intake
• (1) 3 Inch x 4 Inch Straight Boot
• (4) 3 Inch T-bolt Clamps
• (2) 2.25 Inch - 3 Inch Reducer Boots
• (2) 2.25 Inch T-bolt Clamps
• (2) M4 x .7x10mm Bolt
• (3) 10-32 x 3/8 Inch Button Head Screw
• (4) 1/8 Inch Aluminum Rivet
• (1) 3.5 Inch - 4.5 Inch Reducer Boot
• (1) 3.5 Inch T- Bolt Clamp
• (1) 4.5 Inch T-Bolt Clamp
• (1) 4.5 Inch Filter
• (3) M6 x 1.0x20mm Button Head Screw
• (1) LB7 Turbo Inlet O-Ring
• (1) Radiator Cap
• (5) 1/2 Inch Worm Gear Clamps
• (1) 1 Inch Worm Gear Clamp
• (1) 1/2 Inch NPT float Switch
• (1) Low Coolant Sensor
• (1) Thermostat Housing O-Ring
• (3) M6 x 1.0x35mm Flange Bolt
• (6) M6 Fender Washers
• (3) M6 Nylon Lock Nut
• (4) M8x1.25-25mm Socket Cap Bolt
• (4) M6 x 1.0-18mm Socket Cap Bolt
• (1) M14 x 1.5 to 3/8 Inch Hose Barb
• (1) M14 x 1.5 Metric Port Plug
• (1) Metric bond Seal 14mm
• (1) 1.75 Inch x 3 Inch Straight Boot
• (1) 1.75 Inch 90 degree Boot
• (4) 1 3/4 Inch Worm Gear Clamps
• (2) Up-pipe Gaskets (Turbo side)
• (2) Up-Pipe Gaskets (Manifold Side)
• 16 Inch of Trim seal
• 1.5' of 3/8 Inch Heater hose

What Does the HSP Cold Air Intake Bundle fit?

• LB7: 03-04 VIN Code 1

How do people know the VIN code?

Engine code is dictated by the 8th character of the VIN number. The 10th character is the year of the truck.

Special Note

At this time HSP Diesel is making a running change in boot style. This means you will possibly get boots with no logos on them. Please know we are doing this to make sure we can continue to provide you with the high-quality parts you have gotten from HSP Diesel in the past.

Overview

• Powder Coat options clean up the engine bay
• Give you more power
• Better engine sound
• Cooler temperatures
• High strength boots
• Better connections to reduce the likelihood of failure
• Increased tube dimensions
• Increased flow

Our Warranty

HSP No BS Inch LIMITED LIFETIME WARRANTY

At HSP we believe in our products and we stand firmly behind every single one that leaves our facility. For years we have taken care of almost everything & anything that our customers had issues with, but we didn't have a set in stone warranty. We have always gone above and beyond for our customers which set us apart from the rest. We will continue that same standard, but now we are taking things to the next level.