02-04 Duramax LB7 HSP Max Flow Intake Bundle Kit

  • Sale
  • Regular price $874.95


** 1-2 Week Build Time Normally**

Featuring a mandrel bent 4.5 inch intake tube for massive air flow gains, HSP's signature heat shield box eliminating unwanted hot air entering the cold air intake. For every 1 degree increase of intake air temperature will result in a 3hp loss. This kit also features HSP's high flow turbo mouthpiece that out flows any ported mouthpiece on the market. It will also include HSP's hot side and cold side intercooler piping.

The factory intercooler tubing on 2002-2004 Duramax trucks is very restrictive and failure prone. The factory intercooler tubing is only 2.25 inch 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 air flow, and added clearance in tight places.

Included components:

  • 1x 3” 4” Straight Boot
  • 4x 3” T-bolt Clamps
  • 1x 2.25” – 3” Reducer Boot
  • 1x 2.25” T-bolt Clamp
  • 1x 2.25” – 3” Reducer Boot
  • 1x 2.25” T-bolt Clamp
  • 2x M4x.7x10mm Bolt
  • 3x 10-32 x 3/8” Button Head Screws
  • 4x 1/8” Aluminum Rivet
  • 1x 3.5” – 4.5” Reducer Boot
  • 1x 3.5” T-Bolt Clamp
  • 1x 4.5” T-Bolt Clamp
  • 1x 4.5” Filter
  • 3x M6x1.0x20mm Button Head Screws
  • 1x Turbo Inlet O-Ring
  • 16” of Trim Seal


Race Proven 5 layer Silicone Boots
4.5 Inch Intake Tube
Made in the USA
Sold As a Kit

Compatible with:

LB7: 01-04 VIN Code 1


Ask a Question
  • Hey how’s it going was wondering if you sold just the two hsp intercooler tubes I can’t seem to find them on your site

    Yes we do sell the 3" Hot Side and 3" Cold Side for LB7, Here is a link: