Turbo Downpipe Kit - Below Frame

Below Frame, this 5” setup engineered for applications where the exhaust runs below the frame—commonly seen in Peterbilt and Kenworth trucks powered by Cummins and CAT engines. This complete kit includes an upper 90-degree pipe with a ¼ NPT bung for a pyro sensor, lower 90-degree pipe, V-band clamp to the turbo, 3 step clamps, and 12” stainless steel (SS) flex section, providing a flexible, secure connection that handles vibrations, heat, and expansion without leaks or failures. Ideal for heavy-haul operators facing rugged terrains and tight engine bays, it promotes smoother exhaust flow, reduced backpressure, and enhanced turbo efficiency, helping you maintain peak performance while minimizing downtime and maintenance on those grueling cross-country runs.

Key Features

• Upper 90-Degree Pipe: Features a ¼ NPT bung for easy pyro sensor installation, allowing precise temperature monitoring in high-heat diesel applications.
• Lower 90-Degree Pipe: Provides a compact bend-squash pipe for efficient routing below the frame, ensuring optimal exhaust alignment in confined spaces.
• V-Band Clamp to Turbo: Secure, quick-release clamp for a leak-proof turbo connection, built to withstand vibrations and thermal cycling on long hauls.
• 3 Step Clamps: Versatile clamps for reliable joining of sections, accommodating variations in pipe sizes for a custom-like fit.
• 12” SS Flex Section: Stainless steel flexible pipe absorbs movement and shocks, preventing cracks and extending system life in demanding trucking environments.
• Below-Frame Application: Tailored for Peterbilt and Kenworth setups with Cummins or CAT engines, enhancing flow and durability where space is limited.