Detroit Diesel DEF Delete

The Diesel Exhaust Fluid (DEF) system, while designed to reduce  nitrogen oxide emissions, introduces additional complexity to your diesel engine’s operation. Unlike the Diesel Particulate Filter (DPF) system, which burns off accumulated soot using diesel fuel, the DEF system injects a urea-based solution into the exhaust stream. This solution reacts with exhaust gases at high temperatures, breaking down NOx into less harmful components.

Though effective in reducing emissions, the DEF system requires constant refilling and upkeep, and its components, such as the DEF pump, add to the overall maintenance burden. In colder climates, DEF can freeze, leading to operational issues, while the system as a whole can reduce fuel efficiency and impact overall engine performance.

For Detroit Diesel engines, removing the DEF system offers a powerful tuning solution to enhance both engine efficiency and reliability. Our DEF Delete tuning solution optimizes the engine by eliminating the DEF system, improving fuel economy, increasing power, and simplifying maintenance procedures. By removing the DEF system, truck owners can experience reduced operational costs, fewer mechanical issues, and greater overall engine performance. This modification ensures that your Detroit Diesel engine runs more efficiently, particularly in demanding conditions or colder environments.