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

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2004.5-2010 GM 6.6L Duramax LLY/LBZ/LMM
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XDP Part Number:
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  • 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)

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(28 Ratings, 6 Reviews) Average Rating:
Good product
Jake (Ohio) 2/6/2017 2:29 PM
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 (Locust NC) 8/16/2015 12:56 PM
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 (Mechanicstown, OH) 10/4/2014 9:35 AM
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
Well worth it!
Mike (PA) 8/31/2013 12:59 AM
I installed this on my LMM along with the Bladerunner and Stage 2 Intake from AFE and let me tell you somethin, DAMN! I cant vouch for the dyno number they claim (16 hp, 49 ft lbs) but I do believe it. Money well spent! Thanks again XDP.
2008 LMM
Johnny (Hydro,OK) 10/5/2012 6:00 PM
Good clean pipe. Install wasn't bad. The pipe is quite a bit bigger than stock. Nice clean powered coated finish!