
The CFM+ LargeMouth Intake Manifold Kit comes with a 3.5" opening and 3 ports pre-drilled, tapped and plugs installed. It also comes with a bent 3 1/2" steel intercooler pipe(reduced on one end), your choice of black or blue hoses, clamps, installation manual, and all required hardware for mounting.
The Intakes Manifolds come in 5 different colors you can see by clicking here.
If you’ve wanted an economical way to improve the overall performance of your 6.0L Ford Powerstroke this CFM+ LargeMouth Intake Manifold Kit is the way to do it. It flows even more cubic feet per minute than the CFM+ SmallMouth Intake, which already offers a 40% increase in air flow over your current stock intake manifold.
Here you can see the difference between a CFM+ vs. stock intake.

PERFORMANCE GAINS
Increased horsepower is a result of air and fuel mixture and how much of those two you have is different for every truck. There are many tuner, turbo, exhaust, and intercooler combinations that make it unrealistic to give out hard HP numbers. However, a 5-7% increase could normally be expected with installation of this intake manifold.
COMPOSITE MATERIAL
CFM+ Intake Manifolds are made from a highly engineered composite material. The single piece composite manifold construction is able to handle temperatures up to 400 degrees F. The OEM aluminum manifold absorbs and gives off heat and has a very high transfer rate. CFM+ composite material has a low heat transfer rate.
Your diesel engine operates more efficiently with cool air, not warm or hot air, but your turbo heats the outside air as it compresses it for delivery to your engine. That where an intercooler comes in. However your cooled air then passes through a cast aluminum intake on its way into the engine, and that cast intake is hot from under the hood temps and from heat from the engine its bolted to. This heat transfers back into the air flow and into your engine. CFM+ composite material has a heat transfer rate of 900 times less than cast aluminum which means your cooled intercooler air stays cool as it pass through and into your engine. Cooler air means more power and lower EGT’s.
INCREASED AIRFLOW
Why does the CFM+ flow so much more air than the other oversized cast aluminum manifolds in the market and maintain lower air temps?
- The large center section of your OEM cast aluminum manifold may look impressive but it is very bad for flow. The inlet to the manifold from the inter cooler and the outlet of the intake manifold into the engine are very similar in cross-sectional area so when the center section is over three times larger than the inlet and outlet the air flow slows dramatically through this center section. The air flow then is forced to speed up to exit. This causes turbulence in the flow, leading to pressure drop or pumping losses.
- Many competitor’s manifolds are so over-sized in the center section that two of the mounting fasteners which hold the intake to the engine have to be changed to long bolts or studs that must pass directly through the air flow. This causes tremendous turbulence in the flow leading to additional pressure drop or pumping losses.
- Cast aluminum has a much rougher surface than the advanced technology composite CFM+ manifold. The rough interior surface of your OEM or some competitor’s cast aluminum manifolds causes additional turbulence.

113-312, 113-313, 113-314, 113-315, 113-322, 113-323, 113-324, 113-325
CFM+ LargeMouth Intake Manifold Kit
- 20-113-312 Carbon Appearance with Black Hose
- 20-113-313 Silver with Black Hose
- 20-113-314 White with Black Hose
- 20-113-315 Red with Black Hose
- 20-113-322 Carbon Appearance with Blue Hose
- 20-113-323 Silver with Blue Hose
- 20-113-324 White with Blue Hose
- 20-113-325 Red with Blue Hose
Will Fit:
2003 – 2007 FORD TRUCKS WITH 6.0L POWERSTROKE ENGINE

CFM+ makes some of the worlds most advanced intake manifolds.
The CFM+ diesel performance intake manifolds offer you the highest and coolest air flow available for your diesel engine. Using state of the art advanced manufacturing technology and the latest in design and testing software, they design and produce diesel performance intake manifolds of unmatched quality and performance.
Their high temperature composite material allows your cooled air from your intercooler to be insulated from under-the-hood engine heat. This means not only are you getting the most air to your engine but also the coolest air. More air and cooler air means more power, more performance, lower EGTs and better fuel economy.
Whatever your needs may be for your Dodge 5.9L, Ford 7.3L, or Ford 6.0L truck; towing, performance or fuel economy – the CFM+ intake manifold delivers. And they come in a great lineup of cool colors!
Links
- Manufacturer Product Web Page
- Manufacturer Installation Instructions
- Manufacturer Product Support
- Manufacturer Warranty
Manufacturer Contact Info:
760-598-2478
CFM Plus, LLC
1451 Engineer St Suite B
Vista, CA 92081 US










