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Part #: AFE46-20049

AFE Intercooler Tube Upgrade (Hot/Driver Side) 46-20049

2004.5-2010 GM 6.6L Duramax LLY/LBZ/LMM
Part #: AFE46-20049
  6 Reviews
$237.50 $225.62
Quickships by next business day
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  6 Reviews



  • 3'' Dia. stainless steel mandrel bent
  • 5-ply heavy duty couplings
  • Constant tension t-bolt clamps
  • Increased MPG
  • Increased Flow
  • Less restriction
  • Lower EGTs


  • Intercooler tube (1)
  • 5-ply couplings (1)
  • T-bolt clamps (2)


  • MFG. Number46-20049
  • Manufacturer NameAFE
  • Shipping Weight9.00 lb.
  • Shipping Length10 in.
  • Shipping Width10 in.
  • Shipping Height36 in.


Good product
Location: Ohio
The fit is really tight, but the product quality is really good. Comes with both upper and lower boots and new clamps for the LBZ duramax. Might not notice the gains they claim, but it's a necessary peice among other add ons.
Kent Collins
Location: Locust NC
Ordered this AFE tube to replace the stock pipe. The stock pipe boot at the turbo blew off on my way back from a camping trip and I wanted to replace the boots.To my surprize this replacement pipe did what they clamed it would. It made my truck run better,faster spool and to top it off I saw a two mile per gallon improvement on the highway.
2007 LBZ
anthony gorney
Location: Mechanicstown, OH
I read a lot of intresting ideas about this product and a lot of people don't belive this product will do anything for the motor, But don't belive that people just don't know or are ignorant. As soon as I installed the new pipe from AFE there was a huge difference less bends thicker and the coating was amazing started the motor I could here a little more whistle and throttle response was quicker less time to spool up and the motor just was smoother. I think anyone trying to upgrade parts on their motor should invest can tell the immediate difference
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Most Popular Questions

Just to verify this comes directly off the turbo on the driver's side Will this cure the problem I have where the hose at the turbo keeps popping off under load?
View Staff Answer 
The AFE Intercooler Tube Upgrade is the hot side intercooler tube which comes off the turbo and uses improved couplers combined with stronger clamps to help prevent boot blow off. The installation instructions can be found HERE.