An aftermarket component designed for specific 2021 model year Ram 3500 trucks, it aims to remove or bypass the factory-installed Exhaust Gas Recirculation system. These kits typically include block-off plates, coolant rerouting hardware (if applicable), and potentially electronic devices designed to prevent the engine control unit from detecting the missing EGR system and triggering fault codes.
The motivations behind installing such a component often revolve around perceived improvements in engine performance, fuel economy, and reduced maintenance. The EGR system, while designed to lower emissions by recirculating exhaust gases back into the engine, can lead to carbon buildup in the intake manifold and other engine components over time. Removing it is sometimes believed to prevent these issues and restore the engine to its original power output. Historically, these modifications were more common in off-road or racing applications, but are increasingly seen in street-driven vehicles as well.
