The WCFab 3.5" High Flow Passenger (Cold) Side Intercooler Pipe for 2017-2019 L5P 6.6L Duramax equipped Chevrolet Silverado or GMC Sierra 2500 / 3500 HD truck replaces the factory plastic two piece pipe with a high flow, 14 ga. aluminum one piece 3.5" pipe. - - This part uses a CNC machined flange with a double o-ring seal and an upgraded silicone boot in order to withstand higher boost pressures than the factory components to increase reliability and eliminate blown factory boots and horsepower-robbing boost leaks. This pipe is compatible with stock trucks requiring no additional modifications, upgrades, or tuning for installation. - - Replaces the following GM Part Numbers: 84189332

• 3.5 in. Cold Side Intercooler Pipe
• CNC Machined Flange with Double O-Rings provides an improved sealing surface to eliminate boost leaks.
• Durable Powder Coat Finish
• Includes high quality silicone boot and stainless steel t-bolt clamps
• Includes o-ring seals and new wire clip for intercooler outlet connection
• Incorporated threaded bung to reinstall OEM Intake Temperature Sensor
• NO Tuning required, bolt on!
• OEM Clip Ring Design replaced by high quality silicone boot and stainless steel t-bolt clamps for improved sealing and ability to hold higher boost pressures without leaking
• Will fit on stock truck no other modifications or upgrades necessary!