All CFM Plus intakes are designed using proven engineering principles and
the results are confirmed with bench flow testing. As you can see in the
comparison image the stock intake with its sharp bend in the air flow path
causes reduced flow and turbulence. This is typical of stock intakes as
they are not designed for maximum air flow or performance.

Our LargeMouth model is specifically designed with a large 3 1/2” diameter
opening which delivers even more cfm than our SmallMouth model which alreadys delivers more than 40% more air flow than stock. More air means better economy, more power, lower EGT’s better throttle response and less work for your turbo.

This model also requires that you already have a 3 1/2” diameter intercooler pipe on your diesel engine. If you do not then you can purchase the LargeMouth kit which comes with a bent steel pipe with a 3 1/2” outlet and 3” inlet to connect to your stock 3” intercooler.
Using the same patented manufacturing technology as all of our CFM Plus intakes this model is produced as a single piece hollow structure with a smooth air flow path and a sweeping bend versus a sharp bend.

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