Upgraded 3.5" T304 Stainless Steel Intake Manifold with Heating Element for 2007-2024 Dodge Ram 2500/3500 6.7L Diesel | SPELAB

Description

If you drive a 6.7L Cummins, you know the factory grid heater is a ticking time bomb. The retaining bolt is notorious for breaking off and dropping directly into cylinder #6, causing catastrophic engine damage that costs thousands to repair. While standard "grid heater deletes" remove this threat, they leave you with brutal cold-weather starts, thick white smoke, and a sluggish engine on winter mornings.

The ALL-NEW Upgraded SPELAB 3.5" Intake Manifold is the Ultimate Solution.
We took our best-selling intake manifold and made two massive engineering upgrades based on driver feedback:

Premium Material Upgrade

We upgraded the construction from 201 to premium T-304 Stainless Steel, maximizing corrosion resistance and structural strength under extreme heat and boost.

True "Dent-Free" Airflow

Older designs (and competitor models) feature a crushed "dent" in the pipe to clear the factory fuel line. We eliminated that dent. Our new manifold is perfectly round for 100% unrestricted airflow.

By integrating a high-wattage heating coil directly into this massive, perfectly smooth 3.5" manifold, you get the ultimate trifecta: zero risk of a dropped bolt, immediate cold-weather starts, and a massive rush of unrestricted airflow for faster turbo spooling and lower EGTs.

Note: If installing this manifold with a Grid Heater Delete Plate, an IAT Sensor Extension Harness is required. The factory wiring is too short for the new sensor position. Ensure a perfect, plug-and-play fit by adding the harness to your order.

Fitment

• 2007-2024 Dodge Ram 2500/3500 6.7L Diesel, doesn't fit cab and chassis.

Key Features

• Integrated High-Efficiency Heating Element
  Provides reliable, fast startups in cold climates, reducing engine wear and eliminating the excessive white smoke associated with cold diesel engines. Say goodbye to the performance compromise of a grid heater delete.
• Massive 3.5" High-Flow Design
  Mandrel-bent T-304 stainless steel construction dramatically increases airflow compared to the restrictive stock manifold. This results in quicker turbo spool, lower EGTs (Exhaust Gas Temperatures), and significant gains in horsepower and torque.
  
• Superior Durability & Construction
  Fabricated from premium T-304 stainless steel for exceptional strength, corrosion resistance, and heat dissipation. Precision TIG welding ensures a leak-proof seal and long-lasting performance under the most demanding conditions.
  
• Direct Bolt-On Installation
  Engineered to utilize factory mounting points for a straightforward installation. The kit includes multiple NPT ports for easy connection of boost gauges, sensors, or water-methanol injection systems.

Prevent the Notorious Grid Heater Bolt Failure

The factory grid heater design on the 6.7L Dodge Ram engine poses a significant, well-documented risk. The retaining bolt and nut for the heating element are known to eventually fail, break off, and drop directly into the intake, leading to catastrophic and costly internal engine damage. Our performance manifold completely eliminates this factory weak point. By integrating a robust, bolt-free heating coil, we provide a permanent solution that protects your investment and delivers total peace of mind.

Modern, High-Efficiency Heating Solution

Say goodbye to the restrictive and failure-prone factory grid heater. Our manifold features a state-of-the-art, integrated heating coil that delivers fast, reliable, and efficient heating for smooth cold starts in any climate. This advanced design not only ensures your engine fires up effortlessly in frigid conditions but also removes a major source of airflow obstruction, paving the way for significant performance gains that the stock setup could never achieve.

Ensure Balanced, Uniform Cylinder Airflow

The stock intake manifold suffers from a flawed design that causes uneven air distribution, starving some cylinders while over-feeding others. This imbalance compromises efficiency and robs your engine of power. Our manifold is engineered with superior fluid dynamics, featuring a high-flow plenum that guarantees uniform and pressurized airflow is delivered equally to every cylinder. This optimized distribution unlocks smoother engine operation, a broader powerband, and maximum combustion efficiency.

Stop Performance-Robbing Carbon Deposits

The stock intake is a magnet for performance-killing carbon buildup from the EGR system, which clogs passages and chokes your engine over time. This leads to a gradual loss of power, poor throttle response, and decreased fuel economy. Our smooth-wall, high-flow stainless steel manifold is designed to minimize carbon accumulation. Its streamlined interior surface resists deposit formation, ensuring your engine breathes clean and maintains peak performance for years to come.

3.5" Intake Manifold Specifications

What's in the Box

• 1x Upgraded T-304 Stainless Steel Intake Manifold
• 1x Integrated Heating Element Assembly
• 1x Specialized Replacement Fuel Line
• 1x OEM-Quality Mounting Gasket
• 1x Complete Hardware Kit & NPT Port Plugs

Which 6.7L Dodge Ram Intake Manifold Is Right for You?

Compare all four SPELAB intake manifolds side by side to find the best match for your Dodge Ram build.

	High-Flow Cast Aluminum	3.5" Performance SS	3.5" T-201 w/ Heater	Upgraded 3.5" T-304 w/ Heater
Base Price	$539	$99	$199	$299
Delete Plate Compatible	✓	✓	✓	✓
Heating Element	Optional	None	Integrated	Integrated
Material	Cast Aluminum	201 Stainless Steel	201 Stainless Steel	T-304 Stainless Steel
Inlet Diameter	3-3/8"	3.5"	3.5"	3.5"
1/8" NPT Ports	4 ports	2 ports	2 ports	2 ports
EGR System	EGR Optional	EGR Delete Required	EGR Delete Required	EGR Delete Required
Fitment	2007–2024 Ram 2500/3500/4500/5500	2007–2018 Ram 2500/3500	2007–2024 Ram 2500/3500	2007–2024 Ram 2500/3500
Color Options	Black / Red / Silver	Raw Stainless	Black / Red / Raw	Black / Red / Raw

FAQ

Q: What is the difference between this new version and the old model?

A: Two massive upgrades! First, we upgraded the metal from 201 to premium T-304 Stainless Steel for better rust prevention and strength. Second, we removed the "dent" in the pipe that was previously needed for fuel line clearance. The pipe is now perfectly round for maximum flow, and we include a custom fuel line to make it fit flawlessly!

Q: Does this manifold completely fix the "killer grid heater bolt" issue?

A: Yes! By installing this manifold and removing your factory grid heater, you completely eliminate the factory bolt that is known to break off and fall into your engine cylinders.

Q: Will the heating element restrict airflow like the stock grid heater?

A: No. Our integrated ceramic heating coil is specifically designed to have a minimal aerodynamic footprint, allowing massive amounts of air to flow past it effortlessly while still getting piping hot for winter startups.

Q: Do I need a custom ECU tune to run this?

A: A custom tune is not required. You will experience improved spooling, lower EGTs, and reliable starts on a completely stock truck. However, custom tuning will help you unlock the absolute maximum horsepower potential of this high-flow system.

Q: Is it hard to install the included replacement fuel line on 2019+ models?

A: Not at all. The included fuel line is a direct-fit replacement designed to cleanly route around the new, larger 3.5" intake manifold. Basic mechanical knowledge and standard hand tools are all you need.