Wehrli 20-24 Chevrolet 6.6L L5P Duramax Passenger Side 3.5in Intercooler Pipe - Candy Red

If you're working on a 2020-2025 Chevrolet Silverado 2500 HD or 3500 HD, or its GMC Sierra counterpart, with the 6.6L L5P Duramax engine, this passenger side intercooler pipe from Wehrli Custom Fab is a solid upgrade over the stock plastic component. The factory two-piece pipe can sometimes struggle with higher boost pressures, leading to leaks or blown boots. This Wehrli pipe replaces that with a single, well-built 3.5-inch aluminum pipe designed for better flow and increased durability.

This pipe is constructed from 14-gauge aluminum and features a CNC-machined flange with a double O-ring seal, which helps ensure a tight, leak-free connection to the intercooler. It also comes with an upgraded silicone boot and a black anodized billet aluminum adapter, along with stainless steel T-bolt clamps, all designed to handle higher boost pressures more reliably than the stock parts. It even includes a threaded bung to reuse your factory intake temperature sensor, and the candy red powder coating adds a nice touch under the hood. Importantly, this pipe is a direct bolt-on part that fits stock trucks without needing any additional modifications, upgrades, or tuning.