The WCFab 3.5" High Flow Passenger Side Intercooler Pipe for 2020-2023 L5P Duramax replaces the restricted OEM rubber/plastic design with a high flow, 14 ga. aluminum one piece 3.5" pipe. Includes black anodized CNC machined billet aluminum adapter with double o-ring seal, upgraded silicone boot, and stainless t-bolt clamps on upper connection and CNC machined flange with double o-ring seal at intercooler connection for improved pressure and temperature resistance vs. factory design.
Replaces the following GM Part Numbers: 23420958, 84682179
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