Performance Intake Manifold for 6.7L Cummins
Improve the intake side of your diesel build with a performance intake manifold made for the applications listed in this collection. SPEtuner offers 3.5-inch intake manifold configurations for 2007–2018 Dodge Ram 2500 and 3500 trucks equipped with the 6.7L Cummins engine, along with an intake air temperature sensor extension harness for supported Ram applications.
Fitment comes first. Check your model year, engine, existing manifold configuration, heating-element requirements, sensor position, and supporting modifications before selecting a product.
Performance Intake Manifold Fitment
| Product type |
Listed vehicle application |
Selection point |
| Standard 3.5-inch intake manifold |
2007–2018 Dodge Ram 2500/3500 with 6.7L Cummins diesel |
Choose for a standard performance manifold configuration. |
| 3.5-inch intake manifold with heating element |
2007–2018 Dodge Ram 2500/3500 with 6.7L Cummins diesel |
Choose when your planned setup requires the heating-element configuration. |
| Intake air temperature sensor extension harness |
2007.5–2024 Ram 2500/3500 with 6.7L Cummins diesel |
Use when a supported intake modification requires additional wiring reach for sensor relocation. |
The extension harness has a broader model-year range than the manifolds. Its fitment does not make the 2007–2018 manifolds compatible with 2019-and-newer trucks. Always follow the fitment stated on the individual product page.
Choose the Right Intake Manifold Configuration
The standard 3.5-inch performance intake manifold is listed with stainless-steel construction, a mirror-polished surface, two NPT ports, and an unobstructed 3.5-inch inlet feeding two 3-inch mandrel-bent tubes. It provides a high-flow intake path for the supported Ram 2500 and 3500 applications.
The collection also includes a manifold configuration with a heating element. Both manifold versions cover the same listed vehicle range, but they are not the same setup. Check the equipment currently on your truck and determine whether the heating element must be retained before ordering.
- Verify the truck is within the listed 2007–2018 model-year range.
- Confirm it is a Ram 2500 or 3500 with the 6.7L Cummins diesel engine.
- Choose between the standard and heating-element configurations.
- Check port requirements and compatibility with nearby intake components.
- Inspect the intake air temperature sensor location and wiring reach.
Why Upgrade to a High-Flow Intake Manifold?
A factory intake path can become a restriction in a towing or modified diesel setup. A high-flow intake manifold is designed to provide a less obstructed route into the engine, supporting steadier airflow as load and boost increase.
Depending on the rest of the build, improved intake flow can support throttle response, turbo spool, combustion efficiency, and exhaust gas temperature management. Results vary with tuning, turbocharger selection, fueling, exhaust configuration, engine condition, vehicle load, and driving conditions. A manifold should be selected as part of a compatible system rather than treated as a guaranteed standalone power increase.
Plan for Intake Air Temperature Sensor Placement
An intake manifold or related intake modification may change where the intake air temperature sensor needs to be mounted. If the factory connector cannot reach the planned location, the 6.7L Cummins intake air temperature sensor extension harness offers additional reach for its listed applications.
Review the complete routing before installation. Confirm the manifold, sensor, connector, harness, and other intake components work together without placing the wiring near excessive heat, sharp edges, or moving parts.
Installation and Compliance
Professional installation is recommended when manifold fitment, port use, sensor relocation, wiring, tuning, or emissions-system compatibility is uncertain. Review all federal, state, and local requirements before modifying your truck. Any product used as part of an emissions-system removal or alteration is intended only for lawful off-road or competition use and may not be legal for use on public roads.
