Frequency Intelligent Exhaust systems perfectly combine many years of expertise and modern technology to create the world's most advanced exhaust system for Premium Automobiles such as Lamborghini, Ferrari, Aston Martin, Porsche, AMG, BMW...etc. Ever since their inception, `they have consistently engineered high quality exhaust systems for enthusiasts who want a no-nonsense exhaust system that will perform and produce a superior sound, wherever and whenever. FI Exhaust products are truly one-of-a-kind. From a deep bass tone to an exotic high-pitched Formula 1 sound. Every exhaust system is carefully sound tuned and rigorously tested to a specific frequency with our intelligent controller to produce maximum optimized performance. FI Exhaust, the world's leading designer and fabricator of the best, high performance engine component systems.