The Wehrli 01-04 Chevrolet 6.6L Duramax LB7 2-inch Stainless Pass. Side Up Pipe is a high-performance replacement component designed to improve exhaust flow and durability. Constructed from heavy-duty 11-gauge stainless steel, this up pipe replaces the OEM lightweight 16-gauge unit, offering enhanced strength and leak resistance. The upgraded design features a larger diameter and a stainless steel bellow that resists cracking and leaking, ensuring long-term reliability. Its improved flow characteristics help increase turbo spool-up and reduce exhaust gas temperatures (EGTs), contributing to better engine efficiency and performance. Built to clear a conventional downpipe behind the engine in single turbo applications, this pipe maintains the stock mounting location in the valley of the engine for straightforward installation.

This up pipe is compatible with 2001-2004 Chevrolet 6.6L LB7 Duramax engines, fitting models with a single turbo setup. It is a direct replacement for the factory passenger side up pipe, designed to fit seamlessly into the stock exhaust system. The kit includes gaskets for a secure, leak-free seal. Ideal for performance upgrades, towing, or daily driving, this component enhances exhaust flow and engine response. Its robust construction and precise fitment make it suitable for enthusiasts seeking durability and improved performance in their Duramax-powered trucks. Installation is straightforward for those familiar with exhaust system upgrades, ensuring a reliable upgrade for your diesel engine.