Can an exhaust increase engine horsepower? Will a catback exhaust make your car faster? Does a performance exhaust increase your engine's horsepower? Will a new exhaust make your car louder? Is a performance exhaust worth the money? In this video we'll be installing a new catback exhaust on my Honda S2000, and measuring all of the differences. Which one is lighter? Which one makes more horsepower? Which one results in a faster car with real world testing? How do you install an exhaust? All these questions answered in detail!