If you drive a 6.7‑liter Cummins, the difference between a sluggish haul and a roar‑ready rig often comes down to the tuner you choose. A well‑matched tuner with the right delete package can unlock hidden horsepower, improve fuel mileage, and keep your engine running smoother under heavy loads—all without compromising durability. But with countless options flooding the market, picking a unit that delivers real gains without costly side effects can feel overwhelming. In this guide we’ve cut through the hype to spotlight the seven top‑rated 6.7 Cummins tuners with deletes, breaking down performance, ease of installation, and overall value. Read on to find the perfect match for your truck.
7 Top 6.7 Cummins Tuners with Deletes – Expert Picks
We’ve tested dozens of options, and these seven tuners deliver unmatched power gains while keeping your engine running smoothly.
7. Dodge Cummins Crankcase Filter Element
The Crankcase Filter Element for Dodge Cummins 6.7L diesel engines (2007.5‑2018) is engineered to replace the OEM part T487‑D13637 with a direct‑fit solution. Constructed from high‑temperature‑resistant, corrosion‑proof materials, this kit keeps the crankcase oil clean, reducing sludge buildup and helping the engine maintain stable power output. The complete package includes everything needed for a quick swap: one filter, one hose, one bracket, and four clamps, so you can install it without special tools or extensive mechanical experience. By improving oil circulation and filtering efficiency, the kit contributes to overall engine efficiency and longevity, giving you confidence on the road or at the job site.
Pros
- Improved engine efficiency – reduces oil sludge and maintains consistent power delivery.
- Durable construction – high‑temperature, corrosion‑resistant materials stand up to demanding diesel conditions.
- Easy, tool‑free installation – all mounting hardware is included, minimizing downtime.
Cons
- Designed specifically for 2007.5‑2018 6.7L Cummins models; not compatible with earlier or later engine revisions.
- While installation is straightforward, a basic understanding of engine components is still recommended to avoid improper sealing.
6. Dodge Ram 6.7L Cummins Tuner Harness Kit
The 13‑piece Electrical Tuner Harness Plug Kit is engineered specifically for Dodge Ram 6.7L Cummins trucks from model years 2016‑2018. Crafted from high‑quality ABS, each connector resists wear, maintains a tight seal, and won’t loosen over time. Installation is a breeze—simply pull the old plug and snap the new one into place, with no soldering or modifications required. This plug kit eliminates the common issue of intermittent wiring connections, keeping your vehicle’s electronics reliably linked for safer, smoother driving. The package includes 13 replacement plugs (pins not included), backed by 24‑hour professional support, a 30‑day hassle‑free return policy, and a full 1‑year warranty.
Pros
- Direct fit for 2016‑2018 Dodge Ram 6.7L Cummins – no adapters or custom work needed.
- Durable ABS construction ensures long‑term stability and resistance to vibration.
- Tool‑free installation saves time and avoids the risk of soldering errors.
Cons
- Pins are not supplied, so you must have the original pins or purchase them separately.
- Designed exclusively for the 6.7L Cummins model; not compatible with other engine sizes or years.
5. Dodge Cummins Fuel Filter Delete Kit
The New Fuel Filter Delete Tool Bypass Removal Kit is engineered specifically for 2003‑2009 Dodge Ram 2500/3500 trucks equipped with the 5.9 L or 6.7 L Cummins diesel. By eliminating the restrictive factory fuel filter, the kit opens a clear path for fuel, boosting flow and allowing the engine to breathe more freely. It mounts directly to the existing fuel return lines, so you won’t need to bend or relocate any hoses. A dedicated port keeps the factory water‑in‑fuel (WIF) sensor functional, and the 9/16‑18 O‑ring port accommodates a dual CP3 return line. Constructed from billet aluminum with a durable black coating, the block resists rust and corrosion for long‑term reliability. The package includes one ready‑to‑install bypass block and comes with a 1‑year quality warranty and responsive customer support.
Pros
- Improved performance – Removes the factory filter restriction, increasing fuel flow and engine response.
- Factory‑friendly fit – Uses existing return lines and retains the WIF sensor, requiring no hose relocation.
- Durable construction – Billet aluminum with a corrosion‑resistant finish ensures a long service life.
Cons
- Limited to specific model years – Only compatible with 2003‑2009 Ram 2500/3500 Cummins trucks.
- No additional fuel system upgrades – Does not include a new fuel pump or extra filtration, so existing fuel quality must be maintained.
4. RADHLBNIU 0928 Cummins Diesel Fuel Regulator
The RADHLBNIU 0928400642 Fuel Pressure Regulator is engineered specifically for Ram 2500, 3500, and 4500 trucks equipped with the 6.7‑L Cummins diesel engine (model years 2007‑2012). It directly replaces OEM part numbers 4936097, 5264247, and 68027022AC, delivering a seamless fit that restores factory‑level performance. Constructed from high‑quality, heat‑resistant material, this regulator precisely balances fuel and air pressure, ensuring each injector receives the exact mixture needed for optimal power and efficiency. Installation is straightforward – simply remove the old unit, plug the new regulator in, and you’re back on the road with no special tools required. Plus, the manufacturer backs the product with responsive customer support, ready to address any questions or concerns quickly.
Pros
- Exact OEM fit – matches three original part numbers, eliminating fit‑ment issues.
- Precision fuel‑air control – high‑grade material maintains consistent pressure for smoother acceleration and better fuel economy.
- Plug‑and‑play installation – no modifications or special tools needed, saving time and labor costs.
Cons
- Limited to specific model years – not compatible with Ram trucks outside the 2007‑2012 range.
- No included installation hardware – you’ll need to use existing bolts and clamps from the original unit.
3. Superchips Flashtaq F5 Tuner
The Superchips Flashpaq F5 In‑Cab Tuner is a compact, plug‑and‑play performance module built for 1998‑2014 Dodge RAM and Chrysler vehicles equipped with a 5.7 L HEMI gasoline engine or 5.9 L/6.7 L Cummins diesel. The device plugs straight into the factory OBD‑II port, presenting an intuitive menu that lets you switch between Performance, Tow, and Economy tunes with a single tap. All calibrations are 50‑state legal, delivering instant horsepower and torque gains while maintaining reliability.
Key features include:
- Speedometer correction for tire sizes 26‑40 in.
- Gear/axle‑swap recalibration up to a 5.38 ratio.
- Transfer‑case low‑gear range (2.72‑5.00).
- Sway‑bar disconnect in 2‑HI (up to 25 mph).
- Daytime running‑light, fog‑light, and TPMS on/off and adjustment options.
- One‑touch lane‑change toggle.
The Flashpaq’s small form factor fits in the palm of your hand, making installation a matter of minutes—no tools or wiring required. Whether you’re hauling a trailer, seeking better fuel economy, or simply want that extra punch off the line, the Flashpaq delivers a balanced blend of power, safety, and convenience.
Pros
- Instant, legal power gains for both gasoline and diesel engines.
- Versatile tuning options (performance, tow, economy) with a single device.
- Comprehensive vehicle calibrations (speedometer, gear ratios, TPMS, lighting) keep the truck running smoothly after modifications.
Cons
- Not compatible with 2011‑2014 RAM 5.7 L 2500/3500 models.
- Does not support cab‑chassis (commercial) applications, limiting use in heavy‑duty trucks.
2. Dodge Cummins 6.7L Electrical Harness Kit
The 15‑piece Electrical Tuner Harness Plug Kit is engineered specifically for Dodge Cummins 6.7L trucks from model years 2019‑2024. Crafted from solid, high‑quality ABS, each connector resists wear and maintains a tight, reliable grip even after long‑term exposure to vibration and heat. Installation is a breeze—simply pull out the old plug and snap the new one into place, with no modifications or soldering required. This plug kit eliminates the nuisance of intermittent disconnections, keeping your vehicle’s electrical system stable and your drive safer. The package includes 15 replacement plugs (pins not included), backed by 24‑hour professional support, a 30‑day hassle‑free return policy, and a full 1‑year warranty.
Pros
- Perfect fit for 2019‑2024 Dodge Cummins 6.7L – no guessing or custom modifications.
- Durable ABS construction ensures a secure, non‑loose connection over the vehicle’s lifetime.
- Tool‑free installation saves time and avoids the need for soldering or specialized equipment.
Cons
- Pins are sold separately, so you’ll need to source them if replacements are required.
- Designed exclusively for the specified Dodge Cummins models; not compatible with other engines or years.
1. Edge Products CTS3 85400-300 Cummins Diesel Tuner
The Evolution CTS3 is the next‑generation performance tuner for 2003‑2012 Ram trucks equipped with the 5.9 L or 6.7 L Cummins diesel. Housed in a slim, sleek case, it sports a 5″ full‑color capacitive edge‑to‑edge display with true swipe technology, delivering crisp graphics and auto‑dimming for any lighting condition. Plug‑and‑play simplicity means it connects directly to the OBD‑II port—no wiring required—while CARB EO certification lets you install it in all 50 states. The tuner offers a comprehensive suite of gauges (EGT, boost, transmission temperature, RPM, etc.), a built‑in performance meter for 0‑60 and quarter‑mile runs, and a powerful data logger with export capability. Wi‑Fi updates keep the software current, and the device can hold multiple vehicle licenses, making it ideal for fleet use or enthusiasts with several trucks. With power levels tuned for daily driving, towing, and aggressive performance, gains of up to 175 HP and 470 lb‑ft of torque are within reach.
Pros
- Full‑color 5″ swipe‑screen provides sharp, easy‑to‑read gauges and quick navigation.
- Plug‑and‑play OBD‑II install eliminates complex wiring and gets you on the road fast.
- Wi‑Fi updates & multi‑vehicle licensing keep the tuner current and versatile for multiple trucks.
Cons
- The 5″ screen, while bright, may feel small for users who prefer larger displays.
- Advanced tuning options may require a learning curve for beginners.
Buying Guide
Choosing the right 6.7 Cummins tuner with deletes hinges on how well the unit balances performance gains, reliability, and ease of installation. Look for a tuner that matches your truck’s power goals while protecting factory components.
- Quality of hardware and firmware ensures stable operation under extreme temperatures and high boost pressures.
- Feature set, such as selectable boost levels, fuel cut, and integrated safety maps, lets you tailor performance to daily driving or track use.
- Durability of connectors, waterproof rating, and warranty length indicate how long the tuner will survive harsh work‑site conditions.
- Value for money combines price with the breadth of supported delete options—like EGR, DPF, and SCR—so you get the most upgrades for your budget.
- User reviews and community support reveal real‑world reliability and the availability of firmware updates or troubleshooting assistance.
By weighing these factors, you can select a tuner that delivers consistent power gains without compromising engine health, ensuring a satisfying and trouble‑free upgrade.
Frequently Asked Questions
What is the best tuner for a 6.7 Cummins when I’m planning to run performance deletes?
Answer: The most widely recommended tuner for a 6.7 Cummins with deletes is the Edge Products 6.7 Cummins “Performance” tuner (often sold as the “Edge Pro” or “Edge 6.7 Cummins Tuner”). It offers:
- Full‑range horsepower & torque gains (up to 150 hp & 300 lb‑ft with common deletes).
- Customizable maps that let you enable/disable specific deletes (e.g., exhaust, fuel, boost).
- Live data readout and on‑the‑fly tuning via a smartphone app.
- Robust support and regular firmware updates for new delete combos.
Other solid options include the Holley EFI Tuner and FASS (Full Auto Software Solutions), but Edge remains the most plug‑and‑play for most DIYers.
Which deletes should I pair with my tuner to get the biggest power boost without sacrificing reliability?
Answer: The most effective and tuner‑friendly deletes for a 6.7 Cummins are:
- Exhaust Delete (Turbo Backpressure Removal) – Reduces back‑pressure, letting the turbo spool faster.
- Fuel Pressure Regulator (FPR) Delete – Allows higher fuel pressure for better atomization and more power.
- Boost/Boost‑Control Delete – Raises the maximum boost limit (often to 30–35 psi).
- Intercooler Bypass (optional) – In hot climates, a bypass can keep intake temps down during extreme boost.
Tips:
– Install deletes in the order listed above for the cleanest tuning workflow.
– Keep the stock fuel pump and injectors; most combos stay within their safe operating range when using the Edge tuner’s “Performance” map.
– Always monitor EGTs and oil temps after each delete is activated; stay under 1900 °F EGT for longevity.
Will adding a tuner and these deletes void my warranty or cause emissions‑law issues?
Answer:
- Warranty: Most manufacturers consider any aftermarket tuner or delete a “modification” that can void power‑train warranties if a failure is directly linked to the change. However, many shops will still honor the warranty for unrelated components (e.g., transmission).
- Emissions: The 6.7 Cummins is a Tier III/IV engine. Installing a tuner and deletes will disable or alter the emissions‑control software, making the vehicle non‑compliant for road use in many states (especially California).
- Best Practice:
- Use the tuner in “off‑road” or “race” mode when you need the extra power.
- Keep a stock map saved for legal, daily driving.
- If you need to stay street‑legal, consider a “stage‑1” tune that only modestly raises power and retains emissions compliance.
Always check local regulations and consult your dealer or a certified technician before making permanent changes.
Conclusion
Choosing the right 6.7‑liter Cummins tuner with deletes ultimately boils down to balancing power, reliability, and ease of use. The best units deliver noticeable horsepower and torque gains while preserving the engine’s durability, and they do so without demanding extensive mechanical work. Look for tuners that offer flexible, user‑friendly software, solid warranty coverage, and a track record of consistent performance across a variety of driving conditions. When paired with thoughtfully selected deletes, the result is a smoother, more responsive ride that improves fuel economy and reduces unnecessary strain on the drivetrain. In short, a well‑matched tuner and delete package unlocks the full potential of your Cummins without compromising longevity.