Q:

Does a dual exhaust system improve gas mileage?

A:

Quick Answer

A correctly mounted dual exhaust system will allow an engine to breathe better, thus improving its gas mileage. A proper dual exhaust system will have both pipes individually routed from the engine to separate mufflers.

 Know More

Full Answer

Dual exhaust systems work as an upgrade when they help contribute to the release of emissions form the engine. A muffler that is designed to look like a dual exhaust system does not help improve the vehicles performance, as it feeds off the existing single pipe system. Also, if the duel exhaust system shares one pipe until the middle of the vehicle, the engine will not see any performance gains. These types of dual exhaust systems are installed for aesthetic reasons.

Real dual exhaust systems have two separate pipes that begin from the engine and end at two separate mufflers. Some of which, may have a smaller pipe that connects them, to help balance the back pressure of the system. Each pipe is built like a stand-alone exhaust system and allows a vehicle to double the amount of exhaust gases that leave the engine. Not only does the dual exhaust increase fuel economy, but it also gives the vehicle a deeper more aggressive sound and increases the available horsepower of the engine.

Learn more about Car Parts & Maintenance

Related Questions

  • Q:

    What are the indicators of a bad timing belt?

    A:

    The main indicators of a bad timing belt include a high-pitched noise coming from the engine, difficulties when starting the car, poor performance on the road and an excessive amount of exhaust. A vehicle owner must never ignore the symptoms of a bad timing belt. A timing belt that breaks often causes serious engine damage.

    Full Answer >
  • Q:

    What are symptoms of a bad oxygen sensor?

    A:

    The typical signs of a faulty oxygen sensor include increased exhaust emissions due to poor air fuel mixture, engine hesitations, engine misfires, stalling, rough idling and increased fuel consumption. The oxygen sensor is a crucial component of a vehicle's electronic fuel injection and emission system, and it relays information to an on-board engine management computer that regulates fuel delivery to the engine.

    Full Answer >
  • Q:

    What does a secondary air injection system do?

    A:

    Secondary air injection systems are used for emissions purposes, where extra air is injected into the exhaust stream of an engine to burn the leftover fuel in the exhaust stream. This is because there's always some fuel that isn't burnt during the combustion stroke. So, to meet emissions regulations, the smog pump injects air into the exhaust, where the heat and pressure burns the fuel.

    Full Answer >
  • Q:

    How do you install a turbo?

    A:

    To install a turbo, drain all the engine oil, replace the exhaust header with a turbocharger and its accompanying manifold system, and refill the engine with the new oil. Raise the car with a hydraulic lift before undertaking this task.

    Full Answer >

Explore