The 6.7L Cummins engine is a popular platform for enthusiasts seeking more power, reliability, and efficiency. This guide highlights top upgrades that align with real-world towing, daily driving, and heavy-duty use. Each option focuses on improving airflow, cooling, filtration, and overall engine health without sacrificing reliability. Below you’ll find five well-regarded products chosen for the 6.7L Cummins ecosystem, along with a practical buying guide to help you compare features and make an informed choice.
| Product | Upgrade Type | Why It Stands Out |
|---|---|---|
| BD Diesel 11-24 Killer Grid Heater Upgrade Kit | Grid Heater Upgrade | Improves cold-start performance and combustion efficiency for cold climates. |
| SPBREW Intake Manifold Kit 2013-2018 | Air Intake Manifold Upgrade | Larger ports for significantly increased airflow and throttle response. |
| BST BSSP Stainless Steel Intercooler Pipe Kit | Intercooler Piping Upgrade | Polished stainless steel pipes improve reliability and airflow to the turbo. |
| SPBREW Intake Manifold Kit 2019-2025 | Air Intake Manifold Upgrade | Modern design with boosted airflow and faster throttle response. |
| RARAYC Fuel Filter Water Separator Set | Fuel Filtration Upgrade | Advanced filtration with nano-filter mesh to protect injectors and reduce water contamination. |
Note: Each product is listed with a dedicated section below for quick comparison, including installation considerations, performance expectations, and compatibility details.
BD Diesel 11-24 Killer Grid Heater Upgrade Kit
The BD Diesel 1041520 Killer Grid Heater Upgrade Kit is designed to replace the stock grid heater setup to improve cold-start performance and overall diesel combustion efficiency. This kit focuses on delivering faster warm-up and more consistent combustion, which can lead to better idle stability and improved cold-weather drivability. The upgrade is compatible with the 6.7L Cummins in specific Dodge Ram 2500/3500 applications and is presented as a direct-fit replacement to simplify installation. Users should verify model year compatibility prior to purchase.
SPBREW Intake Manifold Kit for 6.7L Cummins 2013-2018
SPBREW’s 2013-2018 intake manifold kit is engineered for a precise fit on Ram 2500/3500 6.7L Cummins. It emphasizes increased airflow with a significantly larger intake port—reported to boost air intake by up to 88% compared to OEM. The kit is designed to improve throttle response, fuel efficiency, and overall performance. Note that it is not compatible with chassis cab variants, so compatibility verification is essential before purchasing.
BST BSSP Stainless Steel Intercooler Pipe Kit
This stainless steel intercooler pipe kit is designed to upgrade the hot and cold side piping for the 2013-2018 Dodge Ram 6.7L Cummins. The kit replaces dented factory pipes with polished, direct-fit replacements to improve throttle response and air flow. By reducing restrictive piping, it supports more efficient combustion and consistent boost delivery across RPM ranges. The kit covers both driver and passenger sides and emphasizes durability and reduced heat soak under heavy use.
SPBREW Intake Manifold Kit 2019-2025 Ram 2500/3500
SPBREW’s 2019-2025 intake manifold kit is tailored for the newer Ram 2500/3500 6.7L Cummins engines. It features a 2× larger intake diameter, delivering up to an 88% increase in air intake compared to OEM, which can enhance combustion efficiency and engine performance. The kit is designed to deliver improved throttle response and fuel efficiency while maintaining reliability. Compatibility is specified for non-chassis cab versions of the Ram lineup.
SPBREW Intake Manifold Kit 2013-2018 Red
This SPBREW manifold kit for 2013-2018 Ram 2500/3500 provides a precision fit with the same performance goals as its 2019-2025 counterpart—boosted airflow and quicker throttle response. The kit highlights a two-times larger intake port than OEM to significantly improve air delivery to the cylinders. It is specified for non-chassis cab Ram models, and buyers should confirm vehicle year and cab type prior to purchase.
Mopar Genuine OEM Filters Bundle
The Mopar Genuine OEM Filters Bundle includes essential filters for 2013-2019 Ram 2500/3500 6.7L Cummins diesels. The kit typically covers fuel, water separator, and engine oil filters for a complete maintenance boost. This bundle emphasizes compatibility with Ram models from 2013 to 2019 and is designed to ensure reliable filtration and engine protection during daily driving or heavy-duty use. It is not compatible with newer model year configurations beyond 2019 in this listing.
Buying Guide: Key Purchase Considerations
When selecting upgrades for a 6.7 Cummins, consider the following:
- Intake and airflow upgrades: Prioritize components that increase air intake and reduce restriction, such as SPBREW manifolds. Ensure compatibility with your model year and cab configuration.
- Cold-start and grid heater performance: Grid heater upgrades can improve cold-weather starts and combustion efficiency, especially in cold climates. Verify the heater model compatibility with your truck’s wiring and ECM.
- Intercooler piping: Upgraded stainless pipes reduce pressure losses and boost reliability under heavy load. Check fitment for both hot and cold sides and any required clamps or couplers.
- Fuel filtration and water separation: Upgraded filters protect injectors and the fuel system, particularly in diesel applications with extended service intervals or challenging fuel quality.
- Compatibility notes: Some kits are year-specific (e.g., 2013-2018 vs. 2019-2025). Confirm your truck’s year, Ram model, and chassis cab status to avoid mismatches.
- Installation complexity: Some upgrades require professional installation or specialized tools. Review installation guides and consider labor costs in your budget.
- Reliability and warranties: OEM or brand-name upgrades often come with better long-term support and documentation. Weigh this against performance gains and personal needs.
For balanced results, consider pairing intake and intercooler upgrades with high-quality filtration and a reliable grid heater setup to ensure consistent performance across temperature ranges and loads. Always verify compatibility with your specific Ram 6.7L Cummins configuration and consult manufacturer installation guidelines before purchase.