BPS Upper Turbo Downpipe for Below Frame Applications

Upgrade your heavy-duty diesel exhaust system with the BPS Diesel Upper Turbo Downpipe – engineered for below-frame applications and featuring a versatile 5" Marmon flare for seamless integration with a wide array of turbochargers. 

This premium downpipe ensures efficient exhaust flow, reduced backpressure, and enhanced turbo spooling, leading to improved engine performance, better fuel efficiency, and lower emissions in demanding trucking and industrial environments. Ideal for rebuilds, upgrades, or replacements, it's a durable solution built to withstand high-heat and high-vibration conditions, helping you maintain peak power and reliability on the road or job site. Available as the pipe alone or bundled with a stainless steel V-band clamp for secure installation.

Proudly offered by BPS Diesel, this downpipe fits most OEM Caterpillar single turbo engines and is commonly installed in Peterbilt and Kenworth trucks (but not limited to these brands). Whether you're equipping a fleet vehicle or customizing your rig, the 5" Marmon flare provides broad compatibility, making it a go-to choice for "turbo downpipe replacement," "5-inch Marmon flare exhaust," "Caterpillar single turbo downpipe," or "heavy-duty truck exhaust components." Backed by our industry-leading customer service and fast shipping from Shoemakersville, PA – order today and optimize your exhaust setup!

Key Features:

• Versatile 5" Marmon Flare: Designed for easy mating with a wide range of turbos, including S400, S410, HX60, and HT60 models, ensuring a secure, leak-free connection. Includes Pyro bung.
• Robust Construction: Made from high-grade aluminized steel materials for corrosion resistance, thermal durability, and long service life in extreme conditions.
• Optimized Flow Design: Promotes smooth exhaust evacuation, minimizing restrictions for quicker turbo response and increased horsepower/torque.
• OEM Replacement Quality: Matches or exceeds factory specifications with OEM part number 14-13822 for direct-fit installation.
• Purchase Options: Choose the downpipe alone for basic replacements or the downpipe with stainless steel V-band clamp bundle for added convenience and a tighter seal.

Compatibility: For but not limited to below frame applications in Caterpillar single turbo engines (e.g., 3406E, C15, C16). Commonly used in Peterbilt (e.g., 379, 389) and Kenworth (e.g., W900, T800) models, with cross-compatibility for other trucks equipped with similar turbo setups. Verify fitment with your turbo model and frame configuration for best results.

Professional installation recommended for optimal performance and safety. Pair it with our selection of turbos, gaskets, and exhaust manifolds for a complete system refresh. Shop BPS Diesel today for reliable heavy-duty diesel solutions that keep you moving!