Unleashing the raw power of your 6.7L Cummins engine starts with breaking free from the shackles of restrictive emission systems. At SuncentAuto, we understand the frustrations RAM 2500 and 3500 owners face—from relentless DPF regeneration cycles to performance-robbing EGR soot buildup. Our premium Cummins Diesel Delete Kit collection is precision-engineered for 2010-2024 models, offering everything from essential race pipes to complete turbo-back exhaust overhauls. Whether you are optimizing a 2022 RAM 2500 for better fuel economy or seeking ultimate reliability through a full DPF+DEF+EGR delete, our kits are designed to eliminate "limp mode" risks and allow your Cummins to breathe freely while delivering peak torque.
A 6.7 Cummins delete kit combines vehicle-specific exhaust, EGR, tuning, and supporting components for Dodge and RAM trucks equipped with the 6.7L Cummins diesel engine. Our 6.7 Cummins delete kits cover common RAM 2500 and RAM 3500 configurations across multiple model-year ranges.
The correct setup depends heavily on model year. A 2007.5–2009 truck does not use the same emissions and electronic configuration as a 2013–2018 or 2019–2024 RAM, so the exhaust, EGR hardware, tuner, DEF-related components, and electronic accessories should be matched to the exact truck.
DPF Delete / Exhaust Components : Race pipes, downpipe-back systems, turbo-back systems, and muffler-equipped exhaust options are available for supported 6.7L Cummins applications.
EGR Delete Hardware : Application-specific block-off, cooler-related, throttle-valve, and coolant-routing components depending on the model year.
Tuner & Calibration Support : Selected packages include a tuner, while others are designed for trucks that already have compatible tuning.
CCV Reroute Components : Used to change how crankcase vapors are routed and reduce the amount of oil mist returning to the turbocharger and intake tract.
Model-Year-Specific Electronic Hardware: Later RAM trucks may require additional gateway, unlock, or programming hardware before a compatible tuning device can communicate with the truck.
Model year is one of the most important buying factors on the 6.7L Cummins. Although all four groups use the same engine displacement, their emissions hardware, exhaust layout, DEF system, and tuning requirements are not the same.
Model Years | Key Differences | Typical Build Focus |
|---|---|---|
First 6.7L Cummins generation with factory DPF and EGR emissions equipment; no later DEF/SCR system. | DPF/race-pipe exhaust, EGR hardware, compatible tuning, and optional CCV or larger exhaust upgrades. | |
Early 4th Gen RAM platform with DPF and EGR but still before the 2013+ DEF/SCR configuration. | DPF exhaust, EGR hardware, year-matched tuning, and optional 4" or 5" exhaust upgrades. | |
Adds DEF/SCR to the existing DPF and EGR system. 2018 trucks also need extra attention to Security Gateway access when tuning. | Exhaust, EGR, DEF-related configuration, tuner/no-tuner options, gateway access on applicable trucks, and optional CCV upgrades. | |
5th Gen RAM platform with more involved electronic access, tuning, and model-year-specific hardware requirements. | Year-specific exhaust and EGR hardware, compatible tuning, Security Gateway access, and any required ECM-related support. |
This is especially important when buying a used RAM 2500 or RAM 3500. Previous owners often modify one system at a time, so a truck described as "deleted" may still retain factory components elsewhere.
What to Check | What You May Find | Why It Matters |
|---|---|---|
Exhaust Under the Truck | Factory aftertreatment, race pipe, 4" aftermarket exhaust, or full 5" system | Shows whether you need one replacement section or a larger exhaust package. |
EGR & Throttle-Valve Area | Factory EGR hardware, block-off hardware, altered throttle-valve hardware, or aftermarket coolant routing | Helps prevent buying an EGR configuration that duplicates work already completed. |
Tuner / OBD Hardware | Mini Maxx, EZ LYNK, another tuner, or no device visible in the cab | The truck may already have a calibration even if the original device is no longer mounted. |
CCV Routing | Factory CCV routing, reroute hose, catch-can setup, or aftermarket fittings | Helps determine whether a CCV kit would add anything to the existing build. |
Gateway / Tuning Hardware | Factory connections, SGM bypass hardware, or other tuning-related accessories | Particularly important on later trucks where electronic access can affect the tuning process. |
If the truck was purchased used, do not rely on the seller's description alone. Verify the hardware, tuner platform, and available tune history before choosing another complete package.
Choose the configuration according to what is already installed, how much of the exhaust you want to replace, and whether compatible tuning is already available.
Package Type | Typical Components | Best For |
|---|---|---|
Exhaust + EGR | DPF/race-pipe exhaust + EGR hardware | Trucks that already have compatible tuning and mainly need the mechanical side completed. |
Cummins Delete Kit With Tuner | Exhaust + EGR + tuner | Trucks that still need both the main mechanical components and a compatible tuning solution. |
Full Exhaust Build | Downpipe-back or turbo-back exhaust + EGR hardware | Trucks replacing more of the existing exhaust or moving to a larger 4" or 5" system. |
Complete Build + CCV | Exhaust + EGR + tuner + CCV reroute | Owners who also want to address crankcase-vapor routing as part of the same 6.7L Cummins project. |
Muffler-Equipped Build | Exhaust with muffler + EGR hardware + optional tuner | Owners who want a deeper exhaust system without as much highway drone as a straight-through configuration. |
A race pipe replaces a smaller section of the factory aftertreatment system and keeps more of the existing exhaust in place.
A downpipe-back system replaces more of the exhaust behind the turbo/downpipe area, while a turbo-back configuration replaces an even larger section of the exhaust path.
A more complete system is usually most useful when the existing downstream exhaust is already corroded, damaged, or being replaced for sound and pipe-diameter reasons. If the existing exhaust is still in good condition, replacing only the required section may be more practical.
A 4" system is the more balanced choice for many RAM 2500/3500 builds because it provides substantial exhaust capacity while generally being easier to fit and control for sound.
A 5" exhaust is usually chosen for a deeper exhaust note, larger-flow builds, or owners who want to replace more of the existing system. Pipe diameter alone should not be treated as a guaranteed horsepower increase.
A straight-through configuration produces a louder, more direct Cummins exhaust note. A muffler-equipped version is usually the better choice when highway drone and cabin comfort matter more than maximum exhaust volume.
Cummins EGR hardware changes across model years and product configurations. Some packages address the EGR valve and cooler, while others may also include throttle-valve-related hardware or different coolant-routing components.
Use the exact year and selected product configuration rather than assuming every 6.7L Cummins EGR kit contains the same parts.
A 6.7 Cummins CCV reroute kit changes how crankcase vapors are routed so less oil mist returns to the turbocharger and intake tract.
If you are deciding between replacing the factory CCV filter, rerouting the system, or addressing it as part of a larger build, see our 6.7 Cummins CCV delete and reroute guide .
Choosing a 6.7 Cummins delete kit with tuner requires more than matching the physical exhaust and EGR hardware. The tuner platform, calibration files, gateway access, and any required ECM-related service must also match the exact model year and transmission setup.
Earlier 6.7L Cummins trucks generally have fewer gateway-related complications than later RAM models. On supported 2010–2012 applications, a Mini Maxx V1 6.7 Cummins delete kit can combine compatible exhaust and EGR hardware with the tuner in one package.
Supported 2013–2017 configurations may be available with a Mini Maxx V2 6.7 Cummins delete kit. Confirm the exact truck year, transmission, mechanical configuration, and included calibration before selecting the tuner option.
2018 trucks require extra attention to Security Gateway access. A compatible 6.7L Cummins SGM bypass cable may be required for a supported tuner to communicate through the factory Security Gateway.
Later RAM trucks can require additional steps beyond simply plugging a tuner into the OBD-II port. On supported applications, an EZ Lynk 6.7 Cummins delete kit may combine mechanical components with EZ Lynk tuning, bypass hardware, and compatible tune access.
If you are considering a 6.7 Cummins EZ Lynk tuner setup, confirm the tuner device, calibration access, transmission tuning options, gateway hardware, and any ECM-related requirements before ordering.
For a deeper comparison of tuner choices, see our best tuners for 6.7 Cummins .
The engine displacement stayed at 6.7L, but the emissions system did not. A 2007.5–2012 truck and a 2013+ truck should not be treated as the same configuration because DEF/SCR was added on the later platform.
When choosing a RAM 2500 delete kit, do not rely on the 6.7L engine designation alone. Model year, pickup vs. Cab & Chassis configuration, exhaust length, and tuning requirements can all affect fitment.
RAM 2500/3500 pickups and heavier Cab & Chassis applications can use different exhaust dimensions and configurations. Confirm chassis type before ordering a long exhaust system.
If the truck already has an aftermarket exhaust, confirm the existing pipe diameter, connection style, and where that system starts and ends. Two parts both labeled for a 6.7 Cummins are not automatically designed to connect together.
Inspect older exhaust clamps, hangers, and connections before ordering a pipe-only configuration. Years of heat cycles, vibration, road salt, and corrosion can make factory hardware difficult to reuse.
If the truck is already due for CCV filter service or has visible oil residue in the intake tract, this can also be a practical time to compare factory CCV filter replacement with a reroute option.
The differences between replacement and reroute are explained in our 6.7 Cummins CCV filter guide .
Confirm all required mechanical parts, tuner hardware, calibration access, and model-year-specific electronic components before disassembling the truck. For year-specific instructions, use the SuncentAuto installation guides for your exact 6.7 Cummins application.
It’s all about the I6 advantage. Since your Cummins turbo sits on the side (not tucked in the valley like a V8), the path is straight and accessible. A Turbo-back kit replaces that restrictive factory downpipe, giving you a massive drop in EGTs and that legendary "straight-six" whistle. On V8 trucks, changing the downpipe is a nightmare, but on your RAM, it’s the best way to let the turbo truly breathe.
Not at all—it actually gets better. The Cummins exhaust brake is controlled by the turbo’s VGT vanes, not the filter. Once the DPF is gone, there’s no "muffled" backpressure in the way. You’ll find the braking much more responsive, and that "hiss" during deceleration will sound significantly crisper, which is a game-changer when you’re hauling heavy on a 6% grade.
Yes. Newer Cummins trucks (2019+) feature a Security Gateway Module (SGM). While the hardware fits like a glove, your tuner needs a bypass cable to communicate with the PCM. Our kits are designed with these modern electronic hurdles in mind, ensuring your 2022+ RAM won’t throw a tantrum (or a limp-mode code) once the sensors are disconnected.
The 6.7L is notorious for "oiling" the intercooler. The stock CCV system vents oily crankcase mist right into the turbo inlet. Over time, this sludge coats your intercooler fins and intake valves, robbing you of air density. Adding a CCV delete to your hardware kit ensures that only cold, clean, dry air enters your engine—keeping your intake tract as clean as the day it left the factory.
Size matters for sound. A 5" straight pipe on a Cummins provides a deep, throaty roar but can create a "drone" inside the cab at highway speeds (around 1800-2000 RPM). If your RAM 2500 is a long-distance tow rig, we suggest the 4" system or a version with a muffler. You’ll get all the flow benefits without the headache-inducing vibration during an 8-hour haul.
