Wehrli 17-19 Chevrolet 6.6L L5P Duramax Passenger Side 3.5in Intercooler Pipe - Gloss White

If you're working on the intercooler system for your 2017-2019 Chevrolet Silverado or GMC Sierra with the 6.6L L5P Duramax engine, this passenger side intercooler pipe from Wehrli is a solid upgrade. It replaces the factory two-piece plastic pipe with a single, larger 3.5-inch aluminum pipe designed to handle higher boost pressures more reliably.

This pipe is built with a CNC machined flange that uses a double O-ring seal, along with an upgraded silicone boot and stainless steel t-bolt clamps. This setup is much less likely to leak boost than the stock components, which can help prevent blown boots and maintain consistent power. It also includes a threaded bung to easily reinstall your factory intake air temperature sensor, and it fits without needing any other modifications or tuning.

The durable gloss white powder coat finish not only looks good but also helps protect the aluminum pipe. This is a straightforward bolt-on part that can improve the sealing of your intercooler system.