How Much HP (horsepower) Does Dual Exhaust Add?

We may get commissions for purchases made through links in this post. Thanks for the support! 👍

Among the first, and usually simplest, adjustments that automobile enthusiasts undertake is to improve the circulation to the motor. Another popular modification is installing an extra performance exhaust system. Many automakers, including Ford, or Toyota, sell these as factory options. Is it true that installing a ‘performance’ muffler on your automobile makes a difference?

Is it Worthwhile to Invest in a Premium Exhaust? Whether the vehicle has further enhancements or not, its overall appearance has a significant impact on its speed potential. This is mainly due to better gas mileage, and better power for not only speed, but also towing.

Why Does a Dual Exhaust Add Horsepower?

Changing the car’s muffler isn’t enough to free up the vehicle’s restricted exhaust system and provide the increased air flow that boosts performance.

When it comes to the silencer, keep in mind that improving the cat-back unit is the only option to see significant power increases. It’s not a bad idea to update the exhaust by itself, specifically if it’s worn out and has to be replaced anyhow.

Essentially, a dual exhaust lets the motor breathe freely, resulting in a combustion reaction process. A real dual exhaust has a separate outlet for every head or exhaust tract, allowing twice as much smoke to be blasted out from the motor.

What Are the Advantages of a Dual Exhaust System?

The dual exhaust system makes a car more effective, which means you’ll reduce money on gas. What amount you use relies on the car or what other modifications you make to it to improve horsepower. You’ll be able to introduce a programmable device to the computer or make engine adjustments in the opposite direction. You can increase the amount of air and gasoline pushed into the motor by using a larger, more effective exhaust, but this may counteract the benefits you get from the dual engine.

Increasing Fuel Mileage

In the dual muffler car, the engine operates more effectively and with much less strain.

Increased Engine Hp

Because there are two exit tubes rather than one, consumed engine exhaust fumes leave the cylinder head quickly and easily.

A car with dual exhaust has a louder, busier exhaust noise. This is something that some individuals prefer. Even if it’s turned off, it makes a loud and strong sound. Some individuals mistakenly believe that a loud noise indicates higher engine performance.

Lower Motor Temperature

The exhaust system aids in the effective operation of the engine, making it colder than some others. The machine will live longer as a result of the lower heat and increased efficiency.

Exhaust Devices: Dual Exhaust or Single Exhaust

The fundamental purpose of a dual exhaust is to push the residual gases out of the chambers as quickly as possible so the next transfer can begin. Because the length of the valve and the speed restrict the pace at which the waste is blasted out from the engine, you need to send all used air out.

The longer time you spend outside, the more air the motor can draw in, resulting in more power. If you have got a non-turbocharged cylinder installing a dual exhaust will not leave a good impression. It would only be for a show in this situation.

Due to the quantity of air pumped into the motor by the turbocharger, the dual exhaust may make a huge difference. You’ll notice a big gain in power.

There is more space for more smoke to leave the motor if every bank will have its muffler. If your car has 8 cylinders and a single exhaust, for instance, all of the consumed air is attempting to escape through one tube, one converter, and one silencer.


Back pressure and various bottleneck obstructions may result, robbing the car of horsepower. Getting a second exhaust pipe, so that each manifold will have its structure, lets the engine expel twice as much exhaust, boosting horsepower.

In short, installing Dual Exhaust can enhance power by 15% – 20% of the vehicle’s original horsepower. For example, a vehicle with 200 hp will probably gain 30-40 hp.

It will therefore play an important role to have the muffler out as soon as feasible. When a true performance exhaust is fitted, it’s almost often as part of larger cat-back patterns.

A dual exhaust system can improve the performance of your vehicle.

About The Author