WCFab 3" High Flow Driver (Hot) Side Intercooler pipe for the 2017-2019 L5P 6.6L Duramax equipped Chevrolet Silverado or GMC Sierra 2500 / 3500 HD truck.
 
3" hot‑side intercooler tube
Manufactured from durable 14‑gauge mandrel‑bent aluminum
Includes high‑quality silicone couplers
Comes with heavy‑duty T‑bolt clamps
Finished with a protective powder‑coated surface
Direct bolt‑on part—no tuning or calibration needed
Designed to work with a stock truck without requiring any additional upgrades
 
Replaces the factory two piece 2 ½" intercooler pipe with a high flow one piece 3" pipe. It also includes upgraded silicone boots that withstand higher pressure and temperature than the factory boots to increase reliability and eliminate blown factory boots.
-NO Tuning required, bolt on!
-Will fit on stock truck no other modifications or upgrades necessary!
Replaces the following GM Part Numbers: 87839947