PDR Diesel Inc. The turbo diesel performance specialists!

CFM+

CFM+ Intake Manifolds
1998.5-2006 Fastcore's CFM+ intake manifold for Cummins engines flows 40 percent more air than stock. The manifold is made from a high-temperature composite material that transfers heat 900 times slower than the cast aluminum used in other intakes, keeping the air cooler. Easy Bolt On Installation 44% Better Flow Than Stock 20% Better Flow Than Some Aftermarket Great Thermal Properties Cooler Air Means MORE POWER! Carbon Fiber Finish or Natural Black Composite Finish
The volume of air that can get stuffed into the engine is also greatly affected by the density of the air flow. This is why the material the manifold is made of is so important. If the manifold’s material acts to insulate the hot under the hood air from reheating the air flow that has just come out of the inter-cooler that is a very good thing for maintaining air density but if the material readily conducts heat such as aluminum that would be bad since the hot under hood temps would raise the air entering the engine since under the hood temps are by definition higher than ambient or outside air temps and heat flow is always from high to low temp. A materials ability to allow heat to pass through it is called its Thermal Conductivity represent by k in engineering equations. Aluminum has a Thermal Conductivity rate or “k” of 236 W/M- °K. The CFM+ composite material’s Thermal Conductivity rate is, 0.25 W/M-°K , which is 944 times lower.