This modification entails an exhaust system configuration for certain diesel trucks, specifically those equipped with the L5P engine. It involves routing the exhaust vertically through the hood, often utilizing stainless steel components to create a prominent visual aesthetic and potentially alter exhaust sound characteristics. The design typically requires precise fabrication and welding for optimal fitment and performance.
The appeal stems from a desire for a unique appearance and the potential for enhanced exhaust flow, which can contribute to improved engine performance in modified vehicles. Historically, such setups have been popular in truck pulling and other motorsports, gradually transitioning into a customization option for street-driven vehicles. The adoption of this setup often reflects a commitment to both functionality and personalized style.