Cummins Performance Parts for 5.9L and 6.7L Dodge Ram

Why Does Your Truck Need Cummins Performance Parts?

A Cummins leaves the factory choked by its own emissions hardware, and cummins performance upgrades are the straight answer to the three failures that follow. The EGR valve feeds abrasive soot back into the intake until the manifold packs solid, the EGR cooler cracks and dumps coolant into the cylinder, and the DPF forces a regen cycle that burns extra fuel to clean itself.

Each of those failures costs you power, fuel, and eventually a tow bill. The cummins engine upgrades in this collection target all three with billet plates, mandrel-bent pipe, and sealed harness caps, and the setup is finished with a delete tuner for 6.7 cummins that recalibrates the ECM for the hardware that comes off.

Why Cummins Engine Upgrades Beat a Soot-Clogged Intake

The EGR valve routes exhaust gas back through the intake, where the soot mixes with oil vapor and bakes into a hard carbon layer on the runners and the throttle plate. Cummins performance upgrades remove that loop entirely, so the intake stays clean and the air path keeps its original cross section. Owners who delete the EGR report the throttle response they had when the truck was new, and the MAP sensor stops reading through a layer of sludge.

Why Cummins Power Upgrades Outlast a Cracked EGR Cooler

The factory EGR cooler is the single most expensive failure on a 6.7, because the internal joints split and push coolant straight into the intake and the cylinder. Cummins upgrades delete the cooler assembly before it fails, which removes the leak path and the soot source at the same time. The intake stays dry, the coolant level stops dropping, and the engine stops drinking antifreeze on every trip.

Why Cummins Exhaust Systems End Wasteful Regen Cycles

A DPF traps soot until the truck dumps extra fuel to burn it off, which dilutes the oil and washes the cylinders on every cycle. Cummins exhaust systems that open the exhaust path terminate that cycle, so the fuel goes to the wheels instead of the filter. The result is lower EGTs, cleaner oil, and a truck that stops interrupting your trip to clean itself.

What Can These Cummins Diesel Upgrades Solve?

A good set of cummins upgrades is a group of targeted components, each aimed at one weak point on the 5.9 or the 6.7. We sort this collection into six working categories so you can find the part that matches the job, whether that is stripping exhaust backpressure, feeding the head more air, holding rail pressure, or keeping the back of the block cool.

Cummins Performance Upgrades for Emissions Deletes, Exhaust, and Tuning

This is the core of the collection, built to eliminate flow restrictions, stop soot recirculation, and recalibrate the ECU. The EGR delete kits remove the valve, cooler, and throttle butterfly so abrasive soot never reaches the intake manifold, which keeps the engine oil clean and drops EGTs hard. The DPF and cat delete pipes are straight, mandrel-bent T304 stainless replacements that end the regen cycle and release a deep diesel note. The tuner and harness plug kits handle the electronics side, and the shibby engineering plug kit 6.7 cummins seals the connectors left open after the delete so water and salt never reach the pins.

6.7 Cummins Upgrades for Air Induction, Turbocharging, and Cooling

The air and coolant side is where cummins intake pipe and cooling hardware deliver the reliability you can feel. Our 3.5 inch high flow intake horns and elbow tubes replace the narrow factory necks, smoothing air delivery straight into the head for higher volume and velocity under boost. The coolant bypass kits route secondary flow to the rear of the block, which is the fix for the number six cylinder hot spot that lifts head gaskets on a worked 5.9 or 6.7. Together these cummins engine upgrades hold boost and even out cylinder temperatures.

Best Cummins Upgrades for Fuel Injection and High-Pressure Delivery

Rail pressure stability decides how long a tuned Cummins survives. The solid fuel rail plug, often called a race plug, replaces the weak factory pressure relief valve that bleeds off pressure the moment you turn the tuning up, so the injectors see steady high pressure instead of a falling curve. Filtration and sealing matter just as much, which is why we carry the sealed billet fuel cap that keeps moisture and grit out of the tank. These cummins mods are small parts that prevent very large failures.

Cummins Forged Pistons and Performance Heads for the Valve Train

The valve train and cylinder head come into play once boost climbs past what the factory hardware can clamp. The 5.9 and 6.7 use stretch head bolts that let the head lift under elevated cylinder pressure, so builders move to high-tensile head studs and a fresh gasket set before they turn the tuning up. Forged pistons, valve bridges, and a performance head are the same story on a 12 valve or 24 valve build. Our current Cummins range centers on the deletes, induction, and fuel delivery that come first in the build order, and those stages are covered in the categories above.

Cummins Performance Transmission, Drivetrain, Steering, and Shop Tools

The drivetrain and steering fixes are the ones that show up on high-mileage 5.9L trucks. The NV4500 five speed is famous for backing its 5th gear lock nut loose until the gear drops out entirely, and the front end develops wander as the steering shaft and sway bar bushings wear. Specialty shop tools such as a valve spring compressor and an injector remover make those jobs realistic in a crowded engine bay. The engine-side cummins turbo support parts we stock now are listed in the fitment guide above.

24 Valve Cummins Power Upgrades for Electronics, Sensors, and Transmission

Electronics and transmission management keep the ECM and the gearbox reading correctly after the hardware changes. Live EGT, rail pressure, and turbo speed data tell you whether the tune is safe, while a transmission thermal bypass keeps fluid flowing through the cooler during a long pull instead of waiting for the stock valve to open. An engine block heater matters just as much in a freezing climate, since warm oil builds pressure faster on a cold start. The CCV, EGR, exhaust, and coolant cummins engine upgrades we carry today are in the fitment guide above.

Shop 5.9L and 6.7L Cummins Upgrades by Engine and Fitment Guide

Use this guide to match each cummins upgrade to your engine and model year. Every listing below is cut for the flanges and sensor locations of the generation it serves.

1. Emissions Deletes, Exhaust Performance and Tuning

Focus: This category focuses on eliminating flow restrictions, stopping soot recirculation, and ECU recalibration.

Solves: It solves soot-packed intake manifolds, cracking EGR coolers, and regen cycles that pour raw fuel into the exhaust.

• Cummins Performance 6.7 Cummins EGR Throttle Valve Delete for Dodge Ram 2500 3500 4500 5500 (2013-2019) - Fits 6.7L Cummins in Dodge Ram 2500 3500 4500 5500 (2013-2019). Removes the EGR throttle butterfly and valve so soot stops packing the intake and EGTs drop on a loaded pull.
• EGR Throttle Valve Delete Kit for Dodge Ram 2500 3500 6.7L Cummins 2007-2017 - Fits 6.7L Cummins in Dodge Ram 2500 3500 (2007-2017). CNC-machined plate deletes the throttle valve that sticks shut and strangles airflow on the early 6.7.
• EGR Delete Cooler Kit for Dodge Ram 2500 3500 4500 5500 6.7 Cummins Diesel 2007.5-2009 - Fits 6.7L Cummins in Dodge Ram 2500 3500 4500 5500 (2007.5-2009). Removes the failure-prone EGR cooler before it cracks and dumps coolant into the cylinder.
• EGR and Throttle Delete Kit for Dodge Ram 2500/3500 6.7L Cummins (2007-2009) - Fits 6.7L Cummins in Dodge Ram 2500 3500 (2007-2009). Bundle deletes the EGR valve and the throttle valve together so the intake stops seeing recirculated soot.
• EGR and Throttle Delete Kit for 2010-2014 Dodge Ram 2500/3500 6.7L Cummins - Fits 6.7L Cummins in Dodge Ram 2500 3500 (2010-2014). Billet plates close the EGR circuit and remove the throttle butterfly on the mid-generation 6.7.
• 6.7L Cummins Diesel EGR Delete Kit For 2013-2018 Dodge Ram 3500 4500 Cab and Chassis - Fits 6.7L Cummins in Dodge Ram 3500 4500 cab and chassis (2013-2018). EGR delete cut for the commercial chassis routing that standard pickup kits do not cover.
• CCV Crankcase Ventilation and EGR Throttle Valve for 6.7L Cummins 2007.5-2018 Dodge Ram 2500 3500 - Fits 6.7L Cummins in Dodge Ram 2500 3500 (2007.5-2018). Pairs the crankcase ventilation reroute with the EGR throttle delete so the intake and the turbo inlet both stay clean.
• CCV Reroute/Delete Kit for Dodge Ram 2500 3500 6.7 Cummins Diesel 2007.5 - 2017 - Fits 6.7L Cummins in Dodge Ram 2500 3500 (2007.5-2017). Reroutes oily crankcase vapor away from the turbo inlet so the compressor wheel and intercooler stay free of sludge.
• 6.7 Cummins DPF EGR DEF Delete Kit 4"+4" Diesel Muffler for 2010-2014 Dodge Ram 2500 3500 - Fits 6.7L Cummins in Dodge Ram 2500 3500 (2010-2014). Complete exhaust bundle with DPF, EGR, and DEF delete plus a 4 inch muffler that ends backpressure and regen cycles together.
• 4" DPF EGR DEF Muffler Delete Pipe Kit for 2010-2014 6.7L Cummins Dodge Ram 2500 3500 - Fits 6.7L Cummins in Dodge Ram 2500 3500 (2010-2014). Straight-through 4 inch T304 piping replaces the DPF, DEF, and muffler to drop EGTs and release a deep diesel note.
• CAT and DPF Delete Pipe For 2019-2024 6.7L Cummins Ram 2500 3500 - Fits 6.7L Cummins in Ram 2500 3500 (2019-2024). Mandrel-bent delete pipe removes the cat and DPF on the fifth-gen trucks without cutting the factory hangers.
• Cat DPF Delete and EGR Cooler Throttle Valve for Dodge Ram 2500 3500 6.7L Cummins 2013-2019 - Fits 6.7L Cummins in Dodge Ram 2500 3500 (2013-2019). Bundle pairs the cat and DPF delete pipe with the EGR cooler and throttle valve delete for one weekend install.
• 6.7 Cummins 4" Diesel Muffler for 2010-2019 Dodge RAM Cummins 6.7L - Fits 6.7L Cummins in Dodge Ram 2500 3500 (2010-2019). Straight-through 4 inch muffler replaces the dense factory unit to cut backpressure and wake up the exhaust note.
• Tuner Harness Plug Kit for 6.7L Cummins Shibby Engineering Dodge RAM 2500 3500 (2013-2015) - Fits 6.7L Cummins in Dodge Ram 2500 3500 (2013-2015). Weatherproof caps seal the connectors left open after an emissions delete, replacing the Shibby Engineering plugs.
• Tuner Harness Plug Kit for 6.7L Cummins Shibby Engineering Dodge RAM 2500 3500 (2016-2018) - Fits 6.7L Cummins in Dodge Ram 2500 3500 (2016-2018). Seals open factory connectors against water, salt, and mud so the harness survives the first winter after the delete.
• Tuner Harness Plug Kit for 6.7L Cummins Shibby Engineering Dodge RAM 2500 3500 (2019-2024) - Fits 6.7L Cummins in Dodge Ram 2500 3500 (2019-2024). Weatherproof plug kit for the fifth-gen trucks that keeps the connectors left open after a delete sealed and dry.

2. High-Flow Air Induction, Turbocharging and Cooling

Focus: This category focuses on boost pressure maintenance, charge air cooling, and rear cylinder thermal management.

Solves: It solves narrow factory intake horns that starve the head, and the rear cylinder hot spot that lifts the head gasket on a worked 5.9 or 6.7.

• 6.7 High Flow Intake Manifold Elbow Tube Horn 3.5" For 07.5-18 Ram 2500 3500 6.7L Cummins Diesel - Fits 6.7L Cummins in Ram 2500 3500 (2007.5-2018). 3.5 inch high flow intake horn replaces the narrow factory neck to raise air volume and velocity into the head.
• 3.5" Intake Manifold Elbow Tube/EGR Cooler Delete kit for 6.7L Cummins 2010-2014 Dodge Ram 2500 3500 - Fits 6.7L Cummins in Dodge Ram 2500 3500 (2010-2014). Combines the high flow intake elbow with the EGR cooler delete so the air path and the soot loop get fixed in one job.
• Coolant Bypass Kit for 5.9L 6.7L Cummins 2003-2018 Dodge Ram 2500 3500 - Fits 5.9L and 6.7L Cummins in Dodge Ram 2500 3500 (2003-2018). Routes secondary coolant to the rear of the block to kill the number six cylinder hot spot that lifts head gaskets.
• Freeze Coolant Bypass Kit For 2003-2007 Dodge Ram 5.9L 2007.5-2018 6.7L Cummins - Fits 5.9L and 6.7L Cummins in Dodge Ram 2500 3500 (2003-2018). Freeze-style bypass kit with heavy-duty fittings that survives freezing winters and hard thermal cycles.
• Coolant Bypass Hose Barb Adapter Kit for 2009-2019 6.7L Cummins Dodge Ram 2500 3500 - Fits 6.7L Cummins in Dodge Ram 2500 3500 (2009-2019). Billet hose barb adapter ties the bypass line into the cooling system without cutting the factory hose.
• Coolant Hose Barb Adapter Leaking Repair Kit for 2009-2019 6.7L Cummins Dodge Ram - Fits 6.7L Cummins in Dodge Ram 2500 3500 (2009-2019). Repair kit replaces the leaking plastic barb with a machined fitting so the cooling system stops weeping coolant.

3. Fuel Injection Systems and High-Pressure Delivery

Focus: This category focuses on maintaining steady fuel delivery, rail pressure stability, and filtration.

Solves: It solves a pressure relief valve that bleeds off rail pressure under aggressive tuning, and a failed fuel cap that lets moisture into the tank.

• Fuel Rail Plug Valve For 2007.5-2012 Dodge 6.7L Cummins RAM 2500 3500 - Fits 6.7L Cummins in Dodge Ram 2500 3500 (2007.5-2012). Solid race plug replaces the weak pressure relief valve so rail pressure stops bleeding off under aggressive tuning.
• Diesel Fuel Tank Gas Cap for Dodge Ram 2500 3500 6.7L Cummins 2013-2019 - Fits 6.7L Cummins in Dodge Ram 2500 3500 (2013-2019). Sealed billet fuel cap replaces the failed factory unit that lets moisture and grit into the tank.

Why Choose EGR Performance?

The industry standard for high-performance diesel reliability.

Premium Quality & Rigorous Testing

Our EGR, DPF, and CCV delete kits are engineered from premium-grade materials and subjected to brutal quality control and field testing. Unlike generic alternatives, our products are built to withstand extreme heat and pressure, delivering unmatched durability and long-term stability when your rig needs it most.

20 Years of Proven Diesel Expertise

We aren't just selling parts. We live in this industry. With two decades of hands-on experience providing specialized modification solutions for heavy-duty truck owners, our upgrades have been extensively proven across every driving environment, from daily towing to high-performance tracks.

Industry-Leading Standards

We work hand-in-hand with top-tier industry partners and reputable organizations. Every product we design, test, and ship meets or exceeds strict industry standards, ensuring your Powerstroke, Cummins, or Duramax gets the exact precision it deserves.

Real Results, Proven Track Record

Thousands of diesel owners trust us to unlock their engine's true potential. Our massive library of positive customer feedback and successful build case studies proves one thing: our kits deliver real horsepower, lower EGTs, and flawless reliability in the real world.

Engine Architecture Notes Behind Cummins Performance Parts

The Cummins B series is an inline six with a deep skirt cast iron block, a gear driven camshaft, and four valves per cylinder on every 24 valve version, and that layout is the reason cummins engine upgrades behave differently from the V8 offerings. The 12 valve 5.9L ran a mechanical injection pump with no engine computer at all, which is why those trucks answer to fuel and airflow changes with nothing more than a wrench. The 24 valve 5.9L brought electronics first through a rotary pump and later through a common rail system fed by a CP3 pump that has earned its reputation for surviving abuse.

The 6.7L that arrived for the 2007.5 model year kept the inline six and added a variable geometry turbocharger, an EGR cooler, and a diesel particulate filter. Cooling is the weak point on a worked 5.9L or 6.7L, because cylinder number six sits at the back of the head where coolant flow drops off, and that hot spot is what lifts a head gasket. A coolant bypass that feeds the rear of the block is the cheapest insurance you can buy for these engines, and it is why it appears in this collection alongside the flow hardware.

Maintenance Tips for Cummins Performance Parts

Cummins power upgrades last longest when a few habits stay on the calendar, and these five are the ones that matter on an inline six.

• Monitor rear cylinder temperature. Cylinder six runs hottest, so a coolant bypass and a fresh pressure cap protect the head gasket.
• Service the crankcase filter or reroute on schedule. A clogged filter raises crankcase pressure and pushes oil past seals.
• Keep an eye on rail pressure under load. A gauge tells you the pump and injectors are healthy long before a misfire shows up.
• Change fuel filters on a short interval. High pressure common rail parts do not tolerate water or fine grit.
• Recheck band clamps after the first heat cycle. Intake and intercooler joints settle once the engine has been fully hot.

Off-Road Use Statement for Cummins Performance Parts

EGR delete and DPF delete hardware in this collection removes factory emissions equipment, and it is not legal for use on a vehicle driven on public roads. Federal law treats removing or defeating an emissions control device as tampering, and the installer accepts that responsibility.

Every emissions delete kit sold here is intended for competition and closed-course off-road use only, and it is not approved for street registration, inspection, or daily on-road driving. Street legal hardware such as intake, cooling, fuel filtration, and harness protection parts carries no such restriction, so you can run those on a registered truck without issue.

FAQs About Cummins Performance Parts

What are the best Cummins performance parts for a 5.9L?

The best 5.9 Cummins performance upgrades start with the intake and the cooling system, because the factory intake horn starves the head and the rear cylinder runs hot. A high flow intake elbow and a coolant bypass kit are the two upgrades that pay back fastest on a 12 valve or 24 valve. Add an EGR delete on the common rail 2003-2007 trucks and the intake finally stays clean.

We build those Cummins upgrades from CNC billet aluminum and T304 stainless so they outlast the plastic they replace. Every kit ships free with a 1-year warranty and 45-day returns, so you can start with one stage and add the rest later.

Do Cummins engine upgrades require a tuner?

Yes, a tuner is required for Cummins engine upgrades that remove emissions hardware, because the ECM has to stop looking for the EGR valve and the DPF. Without the recalibration, the truck will set codes and drop into limp mode. Our tuner harness plug kits seal the connectors left open after the delete so the harness stays dry.

The tuner also lets you switch maps on the fly for towing, economy, or street use. Our 24/7 support team will confirm which tune matches your engine and year before you order.

Which Cummins performance parts fit a 6.7 Cummins?

The 6.7 responds to Cummins power upgrades that delete the EGR cooler and open the exhaust at the same time. We stock EGR and throttle valve delete kits for 2007-2019, CAT and DPF delete pipes through 2024, and the 3.5-inch high-flow intake horn for 2007.5-2018. Each of those Cummins upgrades is cut for the flanges and sensor locations of its generation.

Match your build year to the fitment grid, because the 6.7 changed several times between 2007.5 and 2026. The harness plug kits are separated by year range for exactly that reason.

Will Cummins exhaust systems lower EGTs?

Yes, Cummins exhaust systems lower EGTs mainly by removing the restrictions that trap heat in the engine. Deleting the EGR stops hot exhaust gas from recirculating into the intake, and a straight-through DPF delete pipe drops the backpressure the turbine has to push against. Most owners see the biggest EGT drop when the exhaust and the intake are opened together.

A coolant bypass kit helps on the other end of the problem, since it evens out the rear cylinder temperatures that spike first on a long grade. Lower EGTs are what let you hold a gear instead of backing out of the throttle.

Are Cummins mods legal for street use?

The emissions-related delete hardware in this collection is engineered for competition and closed-course off-road use only, not for trucks registered or operated on public roads. Removing EGR, DPF, or CCV hardware can violate federal and state law on a street-driven vehicle, so confirm your local rules before you order. Fitment matters here too, so match your engine and model year against the compatibility grid before checkout.

Every order still ships free, carries a 1-year warranty, and is covered by our 45-day return policy. Our support team is available around the clock to walk you through fitment and the legal questions that come with it.

What 12 valve cummins performance upgrades pay off first?

The 12 valve responds to 12V Cummins mods that feed it more air and keep the fuel delivery steady, since the P7100 and VE pump engines are mechanically simple and airflow-limited. A high flow intake, a proper exhaust, and governor spring work are the classic first steps. Our coolant bypass kits fit the 1994-1998 5.9L trucks as well, which is the reliability mod most owners skip.

Check the fitment grid for your exact year, because the 12 valve split into early and late builds. If your truck falls outside that range, the 24 valve and common rail kits cover the later generations.

Do Cummins diesel performance upgrades improve fuel economy?

Yes, Cummins power upgrades improve fuel economy mostly by ending the regen cycle, which burns extra fuel to clean the DPF. Deleting the EGR also keeps the intake clean so the engine stops working against a restricted air path. Most owners see the best mileage gain when the hardware is paired with a proper tow or economy tune.

Realistic gains depend on your driving and gearing, and a heavy foot will erase them. The consistent win is fewer regens and steadier EGTs on the same route.

Why do Cummins upgrades include a coolant bypass kit?

The 6.7 runs hotter at the back of the block than the front, and the number six cylinder is where that heat shows up first as a lifted head gasket. A coolant bypass kit sends secondary flow to the rear of the engine so the head temperature evens out instead of spiking in one spot. This is the cheapest insurance you can buy for a truck that tows heavy.

We also carry the hose barb adapter and the leak repair kit, because the factory plastic barb is a known weep point. Fit the bypass before you raise boost, not after the gasket lets go.

How hard is it to install these Cummins mods?

Most Cummins mods in this collection are bolt-on jobs for anyone comfortable with hand tools and a floor jack. An EGR delete or a coolant bypass is typically an afternoon in the driveway, and the intake horn and fuel rail plug are faster still. Every kit arrives with the gaskets, clamps, and hardware needed for the install.

The one step that is not bolt-on is the tuning, which has to be loaded before the truck is driven. Our instructions are written for the home wrench, and 24/7 support is one call away.

What warranty comes with Cummins performance parts?

Every order of Cummins diesel performance hardware is backed by a 1-year warranty and our 45-day return policy. We build the hardware from CNC-machined billet aluminum, T304 stainless, and high-temperature Viton seals, then test it under real towing loads. That is why we can guarantee the fit and the finish.

Shipping is free on every order, and support runs 24/7 from fitment through post-install tuning. If a part does not match your truck, our team will make it right.