PROK Multi Fit Flame Arrestor High-performance flame arrestor engineered for competition use, the PROK Multi Fit Flame Arrestor improves airflow, reduces weight, and fits most traditional adapter systems for quick installation. Key Features Proven design — used in world championships, national championships, and record-setting vehicles. Free-flowing mesh element — increases air flow for measurable performance gains. Ultra-light construction — reduces weight, intake-system fatigue, and vibration. Multi-fit compatibility — includes hose clamp to fit any traditional flame arrestor adapter system. Recommended pre-filter — use WPS# 25-5908 for optimal protection and longevity. Note: These items are designed exclusively for closed-course competition use only. Use on public lands and/or waterways in the state of California is illegal. Ensure compliance with local laws before installation.