3.5" Passenger Cold Side Intercooler Pipe Kit

The Wehrli Custom Fabrication 3.5" High Flow Passenger Side Intercooler Pipe for 2011-2016 LML Duramax trucks is engineered to replace the restrictive, two-piece factory plastic pipe with a single, larger 3.5" diameter section made from robust 14-gauge aluminum. This upgrade significantly improves airflow between the turbocharger and the engine, leading to enhanced efficiency, quicker throttle response, and a more immediate turbo spool-up. Constructed with durability in mind, this intercooler pipe features upgraded silicone boots and stainless steel T-bolt clamps, which replace the OEM clip ring design. This provides superior sealing capabilities, allowing the system to withstand higher boost pressures without the risk of blown boots or the horsepower-robbing boost leaks common with stock components. Installation is straightforward, requiring only basic hand tools, and no additional modifications, upgrades, or tuning are necessary for fitment on stock trucks. While no tuning is required for installation, the pipe's performance benefits are maximized when paired with emissions-compliant tuning and drop-in turbochargers. The kit is finished in a durable custom powder coat, available in various colors including WCFab Red, WCFab Grey, Gloss White, and Gloss Black, with specific lead times noted for different color options. This product cannot ship to California.