The Apex N1-X (N1 Evolution Extreme) Universal muffler series is the perfect choice for those who want to fabricate a unique one-off exhaust either for a race car or a custom street car. Now, the racing heritage and performance power of Apex can be felt on practically any vehicle. The universal Series provides a cost effective and versatile choice for exhaust system development. The N1 Evolution Extreme is based on the proven performance basics of the N1 muffler which emphasizes optimum exhaust efficiency utilizing a straight-thru layout design. Equipped with an internal hybrid silencer uniting power and free flowing characteristics with effective functional sound resonance. A newly adopted muffler tip completes the tail end of the exhaust that serves both purposes of function and form. Constructed with a light weight titanium material rolled and riveted onto a double pipe structure which acts as a diffuser enabling temperature reduction, meanwhile retaining a sporty heat gradiation appearance. Welding is required for installation. Brackets and hangers are not included. Horsepower gains will vary according to vehicle and exhaust piping configuration. Use of a resonator is recommended for street car applications (not included).