Engineered to minimize air restriction and flows 29.10% better than stock. Fully enclosed airbox protects filter from dirt and engine heat. Secondary inlet for improved airflow. Properly mapped MAF sensor to avoid check engine lights. One-piece airbox with integrated seal for cooler, denser air and better performance. Available with 8-layer Cotton Cleanable (oiled) filter.
Fuel Supply Split-Off 25-Inches Away From The CP4 Pump
Return Filter Isolates CP4 Debris Before It Goes To The Tank
Thoroughly Validated & Proven To Work In Real-World Testing
Gen2.1 Billet Filter Head Accepts Standard Spin-On Fuel Filters
Safeguards Fuel Injectors, Rails, Lines, And Tank From CP4 Debris
Includes Donaldson P550943 Fuel Filter (9-Micron At 99% Efficiency)
Can Extend The Range Of A Truck In The Event Of A CP4 Failure
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