3.5'' Intake Manifold for 2007–2018 6.7L Cummins Dodge Ram 2500/3500 Diesel

3.5'' Intake Manifold for 2007–2018 6.7L Cummins Dodge Ram 2500/3500 Diesel

Upgrade airflow and engine efficiency on your 2007-2018 Dodge Ram 6.7L Cummins with our 3.5-Inch Stainless Steel Intake Manifold. Designed to eliminate restrictive factory intake routing, this high-flow intake horn delivers smoother, more direct airflow into the cylinder head—helping reduce EGTs, improve throttle response, and enhance turbo efficiency.

Fitment

• 2007–2018 Dodge Ram 2500 / 3500 6.7L Cummins Diesel
  

Key Features

Featuring a full 3.5″ unobstructed inlet that transitions into dual 3″ mandrel-bent runners, this intake manifold optimizes air distribution across cylinders for more consistent combustion. The result is improved drivability, stronger mid-range response, and potential fuel economy gains under normal driving conditions.

Constructed from premium mirror-polished stainless steel, this intake manifold is engineered for durability under extreme heat cycles and heavy towing demands.

3.5″ High-Flow Unobstructed Inlet

Large-diameter 3.5″ inlet feeds into dual 3″ mandrel-bent tubes, significantly improving airflow compared to restrictive factory components.

Lower EGTs Under Load

Optimized intake path can contribute to a 50–200°F drop in exhaust gas temperatures, especially beneficial during towing or performance driving.

Improved Turbo Response

Smoother airflow helps the turbocharger build boost more efficiently, reducing turbo lag and improving throttle response.

2 Integrated NPT Ports

Includes two pre-threaded NPT ports for easy installation of boost gauges, nitrous systems, water-meth injection, or additional sensors.

Potential Fuel Economy Improvement

Under proper driving conditions, improved airflow efficiency may support a 0.5–1 MPG increase.

Heavy-Duty Stainless Steel Construction

Manufactured from high-quality stainless steel with a mirror-polished finish for superior corrosion resistance and long-term durability.

Specifications

• Application: Performance Stainless Steel Intake Manifold

• Inlet Diameter: 3.5''

• Runner Diameter: Dual 3'' Mandrel Bent Tubes

• Material: Stainless Steel

• Surface Finish: Mirror Polish

• Ports: 2 NPT Ports

• Certification: ISO9001:2000

Performance Benefits

• Increased airflow volume and velocity

• Reduced intake restriction

• Improved throttle response and acceleration

• Lower exhaust gas temperatures

• Enhanced engine bay aesthetics

FAQ

Q1: How does a 3.5″ stainless steel intake manifold perform in extreme weather?
A: Stainless steel maintains structural integrity in both high-heat and freezing conditions. It resists corrosion, cracking, and expansion fatigue caused by temperature swings, making it ideal for heavy-duty diesel applications.

Q2: How does this intake manifold affect turbo performance?
A: By optimizing airflow and reducing restriction, the intake horn allows the turbocharger to build boost pressure more efficiently, helping reduce lag and improve acceleration response.

Q3: Can additional coatings improve performance further?
A: Yes. Ceramic coatings can reduce intake air temperature and increase air density, while thermal barrier coatings help limit engine bay heat soak—both contributing to improved combustion efficiency and consistent performance.

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.