6.7 Cummins Intake Manifold

6.7 Cummins Intake Manifold & Intake Horn Upgrades

Replacing the factory intake setup on a 6.7L Cummins is not only about increasing airflow. The intake manifold, grid-heater configuration, fuel-line clearance, cold-start requirements, and exact truck year all need to work together. EVIL ENERGY 6.7 Cummins intake manifold options are designed for listed 2007–2024 Ram 2500 and Ram 3500 6.7L Cummins pickup applications, with configurations matched to different model-year groups.

For trucks where the factory grid-heater assembly is a concern, the EVIL ENERGY system combines a replacement intake manifold with a CNC-machined billet plate and a separate heater coil. This allows the intake and cold-start strategy to be considered together rather than removing the heater function without planning for cold-weather operation.

What Should You Check Before Choosing a 6.7 Cummins Intake Manifold?

  • Confirm the Model Year: Select the configuration that matches the listed 2007–2012, 2013–2018, or 2019–2024 application rather than choosing only by the 6.7L engine name.
  • Confirm Pickup vs Cab & Chassis: The current EVIL ENERGY application is listed for Ram 2500 and 3500 pickups and is not listed for Cab & Chassis models.
  • Plan for Cold-Weather Starting: If the factory grid heater is being replaced, confirm what heating system remains in the selected kit and whether it is appropriate for the climate and truck use.
  • Check Fuel-Line Clearance: The intake manifold sits close to high-pressure fuel-system components. Confirm the fuel-line routing and clearance for the exact model year before final installation.
  • Check Sensors & Auxiliary Ports: The current EVIL ENERGY design includes four 1/8-inch NPT auxiliary ports. Plan sensor, pressure, or other accessory connections before installation and plug any unused ports correctly.
  • Review the Complete Kit: Check whether the intake manifold, heater components, gasket, mounting hardware, and other installation parts required for the selected year are included before disassembling the truck.

Daily Driving, Towing & Modified 6.7L Cummins Trucks

For a daily-driven or towing truck, reliability, cold-start behavior, correct fuel-line routing, and complete fitment can matter as much as maximum airflow. For a modified truck, the intake manifold should still be evaluated as part of the complete charge-air, turbocharger, fuel, sensor, and calibration system rather than as a stand-alone horsepower upgrade.

Before ordering an EVIL ENERGY 6.7 intake manifold, confirm the truck year, Ram 2500 or 3500 pickup application, heater configuration, fuel-line clearance, sensor and auxiliary-port requirements, package contents, and applicable emissions requirements for the exact vehicle and location.

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Choose the Right 6.7 Cummins Intake Setup

Before replacing the factory intake system, confirm the truck year, pickup configuration, heater strategy, fuel-line clearance, and required installation parts. These checks help determine whether an EVIL ENERGY 6.7 Cummins intake manifold matches the way your truck is actually used.

Year & Truck Fitment
Start with the exact truck year rather than selecting an intake manifold simply because the engine is a 6.7L Cummins. Intake and surrounding component configurations changed across the 2007–2024 production range.

Current EVIL ENERGY fitment is organized by:
1. 2007–2012 Ram 2500 / 3500 6.7L Cummins
2. 2013–2018 Ram 2500 / 3500 6.7L Cummins
3. 2019–2024 Ram 2500 / 3500 6.7L Cummins

The current listed application is for Ram 2500 and 3500 pickups. Cab & Chassis models are not listed as compatible. Confirm the truck configuration before ordering, especially on commercial, fleet, service-body, or chassis-cab applications.

Grid Heater & Cold Starts
The factory intake heater is part of the cold-start system, so removing or replacing the original grid should not be treated as an airflow decision alone. Cold-weather operation needs to be considered before choosing an intake upgrade.

The current EVIL ENERGY configuration combines the intake manifold with a CNC-machined billet grid-heater plate and a separate heater coil. This approach is intended to address the intake path while retaining a heating strategy for cold starts.

Before ordering, consider:
1. How often the truck operates in freezing or very cold temperatures
2. Whether the selected year configuration includes the required heater components
3. Existing grid-heater warning codes or electrical problems
4. Battery and charging-system condition
5. How the heater connects to the truck's existing electrical system
6. Whether any calibration or diagnostic requirements apply to the exact installation

Do not assume that every grid-heater delete or replacement design behaves the same in cold weather. Follow the instructions supplied with the exact configuration being installed.

Fuel Lines, Ports & Installation
A 6.7 Cummins intake manifold shares limited space with high-pressure fuel components, sensors, wiring, and charge-air plumbing. Fitment should therefore be checked as a complete installation rather than by the manifold mounting pattern alone.

Check before installation:
1. High-pressure fuel-line routing and clearance
2. Charge-air connection and surrounding hose clearance
3. Heater wiring and electrical connections
4. Sensor locations and wiring reach
5. Four 1/8-inch NPT auxiliary ports and any required fittings or plugs
6. Gasket placement and sealing surfaces
7. Included mounting hardware
8. Clearance from surrounding brackets and engine components

The current EVIL ENERGY kit includes the intake manifold, CNC billet plate, heater coil, gasket kit, and required mounting hardware. Compare everything in the box with the selected model-year configuration before removing the factory components.

FAQs about 6.7 Cummins Intake Manifold

Will this 6.7 Cummins intake manifold fit my Ram 2500 or 3500?

The current EVIL ENERGY system is listed for 2007–2024 Ram 2500 and Ram 3500 pickups with the 6.7L Cummins, with separate configurations for 2007–2012, 2013–2018, and 2019–2024 trucks. Cab & Chassis models are not listed as compatible, so confirm both the model year and truck configuration before ordering.

Grid-heater hardware and airflow restriction are common considerations when 6.7L Cummins owners compare aftermarket intake systems. The EVIL ENERGY design replaces the original grid configuration with a billet plate and separate heater coil, allowing the intake path and cold-start function to be addressed together.

The current EVIL ENERGY kit includes a separate heater coil rather than simply removing the heating system. Cold-start performance still depends on the exact installation, ambient temperature, heater operation, batteries, charging system, and engine condition. Verify the heater configuration for the selected model year before installation.

The manifold is designed with fuel-line clearance in mind, but fuel-system routing should still be inspected during installation. Confirm the high-pressure lines, fittings, brackets, and surrounding clearance for the exact model year rather than assuming every 2007–2024 truck uses the same layout.

Do not assume one answer applies to every truck or jurisdiction. Calibration, diagnostic-code, and emissions requirements can depend on the exact model year, heater configuration, existing emissions equipment, and applicable regulations. Check the instructions and emissions status for the exact part and vehicle before installation.

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