Yapp USA Automotive Systems, Inc. | 4,696 followers on LinkedIn. YAPP USA Automotive Systems, Inc. is a world class, Tier 1 automotive supplier specializing in design, engineering and manufacturing of automotive fuel system solutions. Using injection-molded and co-extrusion technologies together with our industry-leading product development know-how, we produce unique multi-layer blow-molded fuel management systems and components. Fuel tank and fuel transfer systems provide improved highly durable construction, greater space utilization and corrosion resistance.