"The Recognized Leader in High Performance Technology" FAA Approved - High Performance Upgrades American Aviation is an experienced company at developing quality performance "after market" aviation products that consistently receive FAA approval. American Aviation's team of highly skilled engineers are masters at combining the latest in technology with the original strengths of the engine and airframe design. ULTRAcooling - The basic theory behind improving intercooling performance may be a simple concept, but moving from theory to actual performing hardware, to FAA approval is another story. Several design factors must be analyzed and resolved: aerodynamic cowling configurations, manifold geometry, core design, airflow ducting, and structural mounting of system components. In addition, these factors must be considered in the infinitely changing environment of power, airspeed, altitude and temperature. Ram Air Recovery System & Aerodynamic Speed Stacks - Years ago during development of these systems and after more than 100 flight test hours, the Ram Air Recovery System and Aerodynamic Speed Stack designs were awarded FAA certification. In fact, the systems interacted so well with the existing airframe and engines that no changes to the pilot's operating handbook were even required!