A working exhaust system or manifold considers various aspects such as backpressure and scavenging effect. All of this is done for the smooth outflow of gases from the engine so that the intake is ready for the next cycle. A small leak (or puncture) in your exhaust system can disrupt the smooth outflow of gas. As a result, the exhaust leak produces hissing and deep, gurgling noises from underneath your car. Even though the deep rumble of an exhaust leak may make your vehicle sound like a racecar, it can be very detrimental to your engine’s health.