How Much Horsepower Does a Flowmaster 40 Series Add?

How Much Horsepower Does Flowmaster Add?

If you’re looking to add horsepower to your car, there are many ways to do it. You can boost the engine’s compression, add a new cylinder head, or reinstall a muffler. Flowmaster has made a 40-series muffler for that.

How much horsepower does the Flowmaster 40 series add? You can get 5 to 10 horsepower if you change the Flowmaster exhaust system. If you want to replace your exhaust system, get a Flowmaster 40 series muffler.

The Flowmaster 40 series muffler is made from high-quality stainless steel and has a deep tone. In addition, it has a soft core, which means you can still hear other cars around you while driving in traffic.

How Does A Flowmaster 40 Series Help When You Want To Add More Horsepower?

The Flowmaster 40 series muffler is also known as the Flow Master 40 series or the Flow Master Muffler. They are designed to increase horsepower, torque, and performance. Flowmaster 40 Series mufflers were originally designed for Mustangs but can be installed on any vehicle. A Flowmaster 40 series muffler will enhance your car’s performance and make it sound better.

Having more horsepower means getting better acceleration and overall performance with your vehicle. For example, a truck with a big engine may need more horsepower to perform at its capacity and best level possible. But even if your car does not have such an engine installed, this product still might improve its performance by giving it added power and torque due to having been built with high-quality materials tested repeatedly by professionals.

How Does The Flowmaster 40 series Exhaust System Work?

The Flowmaster 40 series muffler is a straight-through design. That means exhaust gases flow through the system without any restrictions or changes in direction. This process allows for optimum flow and efficiency, which results in a more powerful and louder sound than stock mufflers.

The Flowmaster 40 series muffler is also a high-flow design. It uses larger internal diameter piping than stock exhaust systems to reduce back pressure and maximize exhaust gas flow throughout your car’s engine compartment. Because of this, it produces more horsepower.

The Flowmaster 40 series has been engineered with superior materials that can handle higher operating temperatures than standard replacement parts such as OEM or factory replacement exhaust systems.

The Benefits Of The Flowmaster 40 Series Muffler

The Flowmaster 40 Series Muffler is a great choice to add horsepower to your vehicle. The Flowmaster 40 Series Muffler is made from high-quality materials, ensuring it will last many years. Below are some of the benefits of this exhaust system;

Better Sound

The Flowmaster 40 Series Muffler has a better sound than other mufflers. The sound is not too loud but also not too quiet. In addition, it has the perfect balance of low and high tones, allowing you to drive around town easily while still enjoying the music from your car stereo system.

Increase In Acceleration

The Flowmaster 40 Series Muffler increases the acceleration of your car. It helps get you up to speed faster and maintain that speed more efficiently. This situation is especially evident when driving uphill or against strong winds.

Lower The Vehicle’s Temperature

The large pipes that come with installing this exhaust system ensure your engine remains cooler. That is because they allow the hot air to escape more easily and quickly, reducing the pressure inside the engine. That means your car will run at a lower temperature, which can help prevent it from overheating.

Do Flowmasters Get Loud?

Yes, Flowmasters can get loud over time. They are not as loud as other mufflers but still loud enough to be heard over the radio or highway at speed. There are ways to reduce the noise. You can install a resonator, an additional device attached to your exhaust system, and help prevent excess noise. If you want to get even quieter, you can also have a custom Flowmaster that fits your vehicle perfectly and has no leaks or holes.

Does Flowmasters Increase Fuel Economy?

The Flowmaster 40 Series is a muffler, not a fuel saver. So it won’t increase your mileage by any significant amount, but it can increase your car’s horsepower slightly, which means you’ll get slightly better gas mileage (about 3%).

The difference is small and maybe only noticeable on long drives or when you’re hauling heavy loads. However, it’s still worth considering if you want to enhance your vehicle’s performance while saving money at the pump.

Should I Get A Flowmaster 40 Series Exhaust?

The Flowmaster 40 Series is a great exhaust for those who want to add horsepower and torque, but it can also be used as an upgrade from other mufflers. The three-inch diameter tubes produce a deeper tone than the stock muffler and may increase performance.

The exhaust’s off-road design can make it easier to install in tight spaces when working with older vehicles or trucks. However, you’ll need to cut out parts of the frame to fit this larger unit under your vehicle, so this isn’t ideal if you’re looking for something that fits right into place without any modifications.

If you have an old truck or car and want a louder exhaust note without modifying anything on your engine or chassis, this could be a good choice for your needs!


So if you want to add more horsepower and better fuel economy, a Flowmaster 40 Series Exhaust is the way to go. Primarily, this system comes with better sound control for you. And then there are other benefits such as increased horsepower, better engine temperature, etc.

Now that you know what to look for in a Flowmaster exhaust system, it’s time to get one for your needs. 

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