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Thumbnail Filmstrip of LML Duramax 3 Inch Stainless Steel Downpipe (3-Bolt Flange) PPE 117000700 Images
The factory downpipe on 2015.5-2016 GM 6.6L Duramax LML engines features a severely crushed oval bend that restricts exhaust gas flow directly behind the turbocharger. Replacing this stock restriction with the PPE 117000700 3-Inch Stainless Steel Downpipe upgrades your exhaust system to a smooth, round, 3-inch mandrel-bent design. By eliminating backpressure at the source, this upgrade lowers exhaust gas temperatures (EGTs) and significantly improves turbocharger response and overall efficiency. Furthermore, the included woven titanium heat sleeve wraps the downpipe to isolate extreme heat, reducing engine bay temperatures to protect surrounding sensitive components.
Heavy-Duty Construction: Built from premium 304 stainless steel for superior durability and long-term corrosion resistance.
Optimized Exhaust Flow: Features a 3-inch mandrel-bent, free-flowing design with smooth transitions to enhance turbo efficiency and reduce EGTs.
Thermal Management: Includes a woven titanium heat sleeve to maintain tight control over under-hood temperatures.
Precision Engineering: Equipped with TIG-welded flanges to ensure leak-free, robust connection points.
Factory Compatibility: Retains factory sensor and injection ports, including two M20-1.5 ports and one M14-1.5 port.
Flexible Fitment: Engineered with a 3-bolt flange for seamless integration with both factory and PPE Up-Pipes.
CARB EO# D-701-30
Upgrading your 2015.5-2016 LML Duramax with the PPE 117000700 downpipe provides a comprehensive solution for performance, reliability, and heat protection. The combination of precision TIG welding, corrosion-resistant 304 stainless steel, and integrated sensor ports ensures a straightforward installation that maintains critical vehicle monitors while maximizing flow. Whether you are running a stock configuration or pairing it with aftermarket up-pipes, this downpipe unlocks the thermal management and airflow efficiency your diesel engine requires for optimal operation.
Note: This downpipe is for 2015.5+ models with the 3-bolt triangular flange
The factory downpipe on 2015.5-2016 GM 6.6L Duramax LML engines features a severely crushed oval bend that restricts exhaust gas flow directly behind the turbocharger. Replacing this stock restriction with the PPE 117000700 3-Inch Stainless Steel Downpipe upgrades your exhaust system to a smooth, round, 3-inch mandrel-bent design. By eliminating backpressure at the source, this upgrade lowers exhaust gas temperatures (EGTs) and significantly improves turbocharger response and overall efficiency. Furthermore, the included woven titanium heat sleeve wraps the downpipe to isolate extreme heat, reducing engine bay temperatures to protect surrounding sensitive components.
Heavy-Duty Construction: Built from premium 304 stainless steel for superior durability and long-term corrosion resistance.
Optimized Exhaust Flow: Features a 3-inch mandrel-bent, free-flowing design with smooth transitions to enhance turbo efficiency and reduce EGTs.
Thermal Management: Includes a woven titanium heat sleeve to maintain tight control over under-hood temperatures.
Precision Engineering: Equipped with TIG-welded flanges to ensure leak-free, robust connection points.
Factory[...]
The factory downpipe on 2015.5-2016 GM 6.6L Duramax LML engines features a severely crushed oval bend that restricts exhaust gas flow directly behind the turbocharger. Replacing this stock restriction with the PPE 117000700 3-Inch Stainless Steel Downpipe upgrades your exhaust system to a smooth, round, 3-inch mandrel-bent design. By eliminating backpressure at the source, this upgrade lowers exhaust gas temperatures (EGTs) and significantly improves turbocharger response and overall efficiency. Furthermore, the included woven titanium heat sleeve wraps the downpipe to isolate extreme heat, reducing engine bay temperatures to protect surrounding sensitive components.
Heavy-Duty Construction: Built from premium 304 stainless steel for superior durability and long-term corrosion resistance.
Optimized Exhaust Flow: Features a 3-inch mandrel-bent, free-flowing design with smooth transitions to enhance turbo efficiency and reduce EGTs.
Thermal Management: Includes a woven titanium heat sleeve to maintain tight control over under-hood temperatures.
Precision Engineering: Equipped with TIG-welded flanges to ensure leak-free, robust connection points.
Factory Compatibility: Retains factory sensor and injection ports, including two M20-1.5 ports and one M14-1.5 port.
Flexible Fitment: Engineered with a 3-bolt flange for seamless integration with both factory and PPE Up-Pipes.
CARB EO# D-701-30
Upgrading your 2015.5-2016 LML Duramax with the PPE 117000700 downpipe provides a comprehensive solution for performance, reliability, and heat protection. The combination of precision TIG welding, corrosion-resistant 304 stainless steel, and integrated sensor ports ensures a straightforward installation that maintains critical vehicle monitors while maximizing flow. Whether you are running a stock configuration or pairing it with aftermarket up-pipes, this downpipe unlocks the thermal management and airflow efficiency your diesel engine requires for optimal operation.
Note: This downpipe is for 2015.5+ models with the 3-bolt triangular flange