HSP 2003-2004 Silverado/Sierra 2500/3500 Deluxe Max Air Flow Bundle Kingsport Grey

Looking for a kit that has it all? Featuring a mandrel-bent 4-inch intake tube for massive airflow gains, 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 that outflows any ported mouthpiece on the market. It will also include HSP's hot side and cold side intercooler piping. The factory intercooler tubing on 2001-2004 Duramax trucks is very restrictive and failure-prone. The factory intercooler tubing 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 using race-proven 5 layer silicone boots resulting in lower temperatures, better airflow, and added clearance in tight places. 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 IHI 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: 1x 3 Inch x 4 Inch Straight Boot 4x 3 Inch T-bolt Clamps 2x 2.25 Inch - 3 Inch Reducer Boots 2x 2.25 Inch T-bolt Clamps 2x M4 x .7x10mm Bolt 3x 10-32 x 3/8 inch Button Head Screw 4x 1/8 inch Aluminum Rivet 1x 3.5 Inch - 4.5 Inch Reducer Boot 1x 3.5 Inch T- Bolt Clamp 1x 4.5 Inch T-Bolt Clamp 1x 4.5 Inch Filter 3x M6 x 1.0x20mm Button Head Screw 1x LB7 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 M6 x 1.0x35mm Flange Bolt 6x M6 Fender Washers 3x M6 Nylon Lock Nut 4x M8x1.25-25mm Socket Cap Bolt 4x M6 x 1.0-18mm Socket Cap Bolt 1x M14 x 1.5 to 3/8 inch Hose Barb 1x M14 x 1.5 Metric Port Plug 1x Metric bond Seal 14mm 1x 1.75 Inch x 3 Inch Straight Boot 1x 1.75 Inch 90 Degree Boot 4x 1 3/4 Inch Worm Gear Clamps 2x Up-pipe Gaskets (Turbo side) 2x Up-Pipe Gaskets (Manifold Side) 16 inch of Trim seal 1.5' of 3/8 inch Heater hose Compatible With: LB7: 03-04 VIN Code 1 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.