2011-2015 Duramax LML

The Chevy LML Duramax engine is a significant upgrade from the previous LMM version, with several new features and improvements that make it a top choice for truck enthusiasts. This engine is a part of the third generation of Duramax engines from GM, and it offers better power, efficiency, and emissions controls than ever before.

A Diesel Particulate Filter (DPF), which significantly reduces particulate emissions by over 90%, is fitted to the LML Duramax engine. Additionally, the LML engine has an Exhaust Gas Recirculation (EGR) system that helps NOx (reduce nitrogen oxide) emissions by over 60 percent. These features make the LML Duramax a much cleaner engine than previous versions, while still providing excellent power and performance.

The LML Duramax is a 6.6-liter V 8 engine that produces up to 397 horsepower and 765 lb-ft of torque. This engine is known for its smooth power delivery, excellent low-end torque, and high towing capacity. The LML Duramax is paired with a six-speed automatic Allison transmission, which provides smooth and efficient shifts.

The DPF system can be restrictive and can reduce exhaust flow, which can limit engine performance. By removing the DPF, you can increase exhaust flow, which can lead to better performance.

The EGR system can cause carbon buildup in the engine, which can lead to reduced engine efficiency and performance. By removing the EGR system, you can prevent carbon buildup and improve engine performance.

The LML engine is designed to be more fuel-efficient than previous versions, with improvements in fuel injection and turbocharger technology. This engine provides excellent fuel economy, which is important for truck owners who use their vehicles for long hauls and heavy loads.