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Part #: AFE46-20048

AFE Power Intercooler Tube Upgrade (Cold/Passenger Side) 46-20048

2004.5-2005 GM 6.6L Duramax LLY
Part #: AFE46-20048
  1 Review
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The aFe intercooler tube represents the next generation of Diesel performance products. This intercooler tube outflows the factory intercooler tube by 40%.  Not only will you get increased performance but you will also see lower EGT's and increased MPG.  This tube includes two 1/8" NPT bungs for additional sensor or injection ports. Talk about bang for the buck!

This intercooler tube is constructed of 3" mandrel bent stainless steel for smooth air flow transition and increased power and comes complete with 4-ply heavy duty couplings and constant tension T-bolt clamps for a tight and secure installation.


  • MFG. Number46-20048
  • Manufacturer NameAFE
  • Weight7.00 lb.
  • Height13 in.
  • Width13 in.
  • Length17 in.


Great product
Location: San Pedro Ca.
Installed hot and cold, great fit, easy install, looks good.....good instructions.about 2 1/2 hr. install. Second person not needed or I got lucky. Truck sounds, runs better, some power gains.

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Most Popular Questions

Does this product come with both coupling boots or just the one shown?
View Staff Answer 
AFE Power Intercooler Tube Upgrade (Cold/Passenger Side) 46-20048 comes with only 1 coupler.

Parts list: 1 Tube, Upgrade - 05-60046

1 Silicone coupler reducer - 05-60047

1 T-bolt clamps, spring loaded 3-1/2" - 05-60013

2 Plugs, hex head socket (1/8" NPT) - 03-50029