Wehrli 20-24 Chevrolet 6.6L L5P Duramax Passenger Side 3.5in Intercooler Pipe - Gloss White

Starting with a 14-gauge aluminum construction, this 3.5-inch intercooler pipe from Wehrli is built to handle more than the stock plastic piece it replaces. It's designed specifically for the passenger side of your 2020-2025 Chevrolet Silverado 2500 HD or 3500 HD, and its GMC Sierra counterparts. The factory two-piece pipe can be a weak point under higher boost, often leading to leaks or blown boots, but this single-piece aluminum upgrade aims to solve that problem.

Wehrli uses a CNC machined flange with a double O-ring seal, which creates a much more reliable connection than the stock setup. This is paired with an upgraded silicone boot and a black anodized billet aluminum adapter, all designed to withstand higher boost pressures. It even includes a threaded bung to reinstall your OEM intake temperature sensor. This pipe is a direct bolt-on upgrade that fits stock trucks without needing any other modifications or tuning, making installation straightforward.

The pipe comes finished in a durable gloss white powder coat. It utilizes T-bolt clamps and O-rings for a solid seal, and the factory clip ring design is replaced with these more robust components. This setup ensures improved sealing and the ability to hold higher boost pressures without leaking.