The 2019 Ram 3500 delete kit represents a significant modification path for owners seeking to transform their heavy-duty work truck into a high-performance machine. Often associated with removing the emissions-heavy diesel particulate filter (DPF) and other restrictive components, this kit unlocks the latent potential of the 6.7-liter Cummins engine. By bypassing the constraints of the original emissions systems, enthusiasts aim for a surge in power, improved throttle response, and a more robust exhaust note that defines the character of a true workhorse.
Understanding the 6.7L Cummins Powerplant
Before diving into the specifics of the delete kit, it is essential to understand the heart of the 2019 Ram 3500: the 6.7L Cummins ISB6.7. This inline-six diesel engine is celebrated for its legendary durability and torque output, making it a favorite among truckers and gearheads alike. However, the stringent emissions regulations imposed on later models led to the addition of complex after-treatment systems. These systems, while necessary for compliance, can introduce restrictions that hinder the engine's natural breathing and efficiency, creating the motivation for a delete procedure.
Components Typically Included in the Kit
A comprehensive delete kit for the 2019 model year is a meticulously curated package designed to remove specific regulatory hardware. While the exact components can vary by vendor, a standard kit generally targets the parts that create backpressure and reduce performance. The goal is to streamline the exhaust path and eliminate the need for regeneration cycles, which can be inconvenient for vehicles used in off-road or towing scenarios.
Key Removal and Replacement Items
Exhaust Downpipe-Back Pipe (DPF Removal)
Diesel Oxidation Catalyst (DOC) Delete Pipes
High-Flow Diesel Particulate Filter (DPF) Replacement or Delete Pipes
NOx Sensor Delete Plates or Simulators
EGR Cooler and EGR Valve Bypass Kits
The Performance and Efficiency Gains
Removing the restrictive emissions hardware allows the engine to operate with less resistance, which translates directly to the drivetrain. Owners often report a noticeable increase in horsepower and torque, particularly in the mid-range RPMs where towing and hauling occur. The removal of the DPF regeneration process also means fewer interruptions to driving flow, as the vehicle will no longer require forced regenerations that can halt operation to burn off soot deposits.
Considerations for Towing and Daily Driving
While the allure of raw power is strong, it is vital to consider the practical implications of installing a delete kit on a truck that hauls heavy trailers or serves as a daily driver. The deletion of the DPF and emissions systems can lead to increased visible smoke from the exhaust, which may trigger warnings from modern towing vehicle monitoring systems. Furthermore, the altered exhaust gas temperatures can impact the longevity of the after-treatment components if the vehicle is not tuned correctly for the new configuration.
The Tuning and Calibration Factor
A delete kit is not a simple bolt-on modification that works out of the box; it requires a custom tune to optimize the engine's parameters. The engine control module (ECM) must be reprogrammed to adjust fuel maps, timing, and pressure parameters to match the new hardware layout. Without proper tuning, the engine may run poorly or throw diagnostic trouble codes. Investing in a quality tune is therefore a critical step to ensure the vehicle runs smoothly and reliably post-delete.
