Composite Airbox for Mid get/Sprint Car

The K&N Composite Airbox for Midget/Sprint Car is a purpose-built racing air intake assembly engineered for competitive oval-track competitors who demand reliability and consistent airflow under extreme operating conditions. This custom racing assembly addresses a critical need in sprint car and midget racing: delivering cold, filtered air to the engine without sacrificing the compact packaging required in tight cockpit spaces. Whether you're running a local dirt oval or competing regionally, this airbox replaces inefficient factory designs with a tuned system that maintains filter integrity and airflow consistency throughout an entire season.

Constructed from composite materials, the airbox features a 7 x 19 inch rectangular intake mouth and 6.5 inch height—optimized dimensions that fit the typical fuel cell and engine bay constraints of midget and sprint car frames. The assembly includes K&N's reusable oiled filter element, which traps fine particulates while maintaining superior airflow compared to disposable alternatives; the oil-soaked media actually improves filtration efficiency as it loads with dust. The composite construction resists vibration-induced cracking and thermal stress better than fiberglass or thin plastic designs, critical in racing where engine bays routinely reach extreme temperatures and sustained high RPM loads. This design minimizes turbulence and resonance inside the chamber, promoting laminar flow to the carburetor or fuel injection inlet.

Sprint car and midget racers benefit most from this assembly when running naturally aspirated engines at 8,000–10,000 RPM in dust-laden track environments. The reusable filter element reduces operational costs over a season—simply clean and re-oil it between events rather than replacing disposable filters. Installation fits directly into standard midget and sprint car engine bays with minimal modification; verify mounting tab alignment with your specific frame configuration before purchase. At 4.15 pounds, the composite construction keeps unsprung weight minimal, preserving suspension dynamics and acceleration response critical to competitive performance.