3.5” Performance Intake Manifold For 2007.5–2024 Dodge Ram 2500/3500 6.7L Cummins
Unleash the true airflow potential of your Ram 2500 or Ram 3500 equipped with the legendary Cummins 6.7L engine.
The factory intake manifold is restrictive and built around a grid heater design that compromises airflow. Many “grid heater delete” systems increase flow — but sacrifice cold-weather reliability.
Our 3.5” Performance Intake Manifold delivers the best of both worlds:
✔ Massive airflow increase
✔ Integrated high-efficiency heating element
✔ All-season cold start reliability
✔ Elimination of the factory grid heater bolt failure risk
This is the ultimate solution for Cummins owners who want performance without compromise.
⚠ Note:
If installing with a grid heater delete plate, an IAT Sensor Extension Harness is required. The factory wiring may be too short for the new sensor position. We've included it as a product add-on for you.
📌 Fitment
2007.5–2024 Dodge Ram 2500 / 3500 6.7L Diesel
(Not compatible with cab & chassis models.)
2019–2024 Model Note (Currently out of stock)
Due to factory fuel line routing, interference may occur. When selecting the 2019–2024 option, a replacement fuel line is included for proper fitment.
🚀 Why Upgrade Your 6.7 Cummins Intake Manifold?
1️⃣Integrated High-Efficiency Heating Element
Unlike traditional grid heater delete plates, our manifold features a high-wattage ceramic heating coil integrated directly into the high-flow plenum.
Benefits:
You no longer have to choose between airflow and cold-start reliability.
2️⃣Massive 3.5” High-Flow Design
The stock manifold restricts airflow and creates uneven cylinder distribution.
Our mandrel-formed 3.5” plenum dramatically increases intake volume and efficiency.
Results may include:
Perfect for towing, daily driving, or performance builds.
3️⃣Eliminate the Notorious Grid Heater Bolt Failure
The factory grid heater retaining bolt on the 6.7L Cummins is a well-documented failure point. If the bolt breaks and drops into the intake, catastrophic internal engine damage can occur.
The DPFexhaust intake manifold:
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Removes the factory bolt design entirely
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Integrates a secure, bolt-free heating coil
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Permanently eliminates this risk
Protect your investment while improving airflow.
4️⃣Balanced Cylinder Airflow
The OEM intake suffers from uneven air distribution between cylinders.
Our engineered plenum design improves airflow balance, ensuring:
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Uniform cylinder pressure
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More efficient combustion
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Smoother engine operation
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Broader torque curve
Balanced airflow = cleaner burn + more usable power.
5️⃣Stop Carbon Buildup
Stock manifolds accumulate soot and carbon from EGR flow, reducing efficiency over time.
The smooth-wall stainless design of the DPFexhaust manifold:
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Minimizes carbon adhesion
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Improves long-term airflow stability
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Maintains peak performance
What's in the Box
This intake manifold kit is engineered to use factory mounting points for straightforward installation.
Includes:
📊 Specifications
| Feature |
Details |
| Inlet Diameter |
3.5 Inches |
| Material |
T-304 Stainless Steel |
| Finish |
Black / Red / Raw |
| Heating Element |
High-Wattage Ceramic Coil |
| Auxiliary Ports |
Two (2) 1/8" NPT Ports |
| Hardware |
Gasket + Mounting Hardware Included |
❓ FAQ
Q: What are the main benefits?
Increased airflow for horsepower and torque gains, plus reliable cold starts thanks to the integrated heating coil.
Q: Do I need a tune?
A custom ECU tune is not required for installation, but tuning will maximize airflow and performance gains.
Q: Is installation difficult?
Direct bolt-on design. Moderate mechanical experience recommended. Professional installation advised if unsure.
Q: Does this replace the factory grid heater?
Yes. The integrated heating coil replaces the restrictive OEM grid heater assembly.
Q: Can I use the NPT ports for gauges?
Yes. Perfect for boost gauges, EGT sensors, or water-meth injection systems.
Q: Will it fit with stock intercooler piping?
Yes. Fully compatible with factory piping.
Q: Does it improve fuel economy?
Improved airflow efficiency may contribute to better MPG under normal driving conditions. Results vary by driving style.
Fast Shipping Policy
Your order will be dispatched within 1-2 business days, and the package will arrive within your order's estimated date. Click for Shipping Policy.
Easy Return Policy
Every order comes with a 14-day free return, which means you don't have to pay for a return slip. Click for Return Policy.
PLEASE NOTE!