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USD 180.5 180.5 218.5
Part #:

HSP LLY Cold Side Intercooler Pipe (For Factory Bridge)

2004.5-2005 GM 6.6L Duramax LLY
Part #:
FROM 180.5
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The HSP LLY Cold Side Intercooler Pipe (For Factory Bridge) from XDP also known as the HSP Cold Side Tube to Factory Bridge is an ideal upgrade for your 2004.5-2005 GM 6.6L Duramax LLY. This cold side tube is perfect for anyone looking to upgrade the factory Chevrolet/GMC parts and use the stock bridge.

The LLY Duramax from the factory has an extremely restrictive charge air system. HSP Diesel quickly realized how much power and potential was being left on the table using the small-diameter factory tubes. While this seemed like the best idea at the time with current technology and understanding of the potential of these vehicles, they were able to tell that the factory LLY system really did need more air.

To start the HSP Cold Side Tube to Factory Bridge is a 3" diameter tube. This is a huge increase compared to the factory parts. They also are very careful when making their bends because they want to make sure that the bends are made in a sweeping style. What the sweeping style does is creates bends that can move air while decreasing the amount of turbulence that is created. HSP Diesel saw that the HSP Cold Side Tube to Factory Bridge will flow up to 53% above what the factory parts are capable of. To get the most out of your charge air system they do recommend the entire HSP line of upgraded charge air tubes, but this is a great place to start.

3" Mandrel Bent
Fits Factory Bridge
Increased Spool Up
Increase Of Up To 53% Flow Over Stock
Powder Coat Options To Clean Up The Engine Bay

What Comes With The HSP Diesel Hot Side Tube?
(1) 3" Cold Side Tube
(1) 2.25" - 3" Reducer Boot
(1) 3" T-Bolt Clamp
(1) 2.25" T-Bolt Clamp
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Vehicle Applications

2004.5 Chevy 6.6L LLY Duramax
2005 Chevy 6.6L LLY Duramax
2004.5 GMC 6.6L LLY Duramax
2005 GMC 6.6L LLY Duramax

Product Options

205-HSP-W Polar White
205-HSP-SB Silk Satin Black
205-HSP-RAW Raw
205-HSP-O Orange
205-HSP-GB Ink Black
205-HSP-DG Kingsport Grey
205-HSP-CR Illusion Cherry
205-HSP-CP Illusion Purple
205-HSP-CB Illusion Blueberry
205-HSP-BR Flag Red


  • Manufacturer Name HSP
  • Shipping Weight 12.00 lb.
  • Shipping Length 24 in.
  • Shipping Width 16 in.
  • Shipping Height 10 in.
  • Fuel Type Diesel
  • E-Code 4
  • Warranty Yes
  • Warranty Info HSP Limited Lifetime Warranty
  • Prop 65 Prop 65 WarningWARNING: Cancer & Reproductive Harm -
  • Internal LR


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