Tips Sahabat

Causes of a Loud Racing Exhaust Sound

10 April 2025
Suara Knalpot Racing Cempreng

The sound of a racing exhaust is certainly quite disturbing for every user. To address this, you need to know what causes the disturbance.

This time, we will review the causes that make the exhaust problematic, such as producing this annoying sound. Therefore, pay attention to the discussion in the following article!

Causes of Annoying Racing Exhaust Sound

Aftermarket exhausts, or more commonly known as racing exhausts, are specially made exhausts for modification and racing purposes. In addition, many believe that their use can enhance the performance of motorcycles.

Although it is quite difficult to distinguish between genuine and fake, genuine exhausts generally use high-quality materials. Especially in the silencer part, such as stainless steel to titanium.

Meanwhile, fake exhausts will use low-quality materials, such as ordinary pipes. Racing exhausts can produce a distinctive and loud sound. This is generated from the combustion or compression process of the engine.

However, over time, the characteristic sound of this exhaust may become problematic, leading to a change compared to the previous sound. Usually, the sound produced will become annoying.

The cause of this is that in the cylinder part, there will be a filter pipe, and this pipe has a smaller diameter than the outer circle of the silencer.

This means there is a space between the filter pipe and the silencer, and it is this filter pipe that often causes excessive vibrations and makes the exhaust sound annoying.

You can address this issue by adding a vibration dampener inside the silencer. Specifically, you place it between the filter pipe and the silencer. This dampener is called Glasswool, or also known as Gesbul.

This component, which is shaped like cotton or fabric, indeed has a special function in dampening vibrations in racing exhausts and has heat-resistant properties, so it will not easily burn.

Also Read: This is the Difference Between Racing Exhaust Headers and Factory Exhausts

So, the denser the glasswool or gasbul that is inserted, the sound will be cooler and the vibrations from the filter pipe can be dampened. There are two types of glasswool that are commonly used, namely white and yellow.

For the white one, it usually has better quality because it is more heat-resistant. In addition, besides gesbul, the gaps in the silencer, which are the joints between the body and its cover, should be sealed with glue before the filter is installed.

The glue applied can be rubber glue, which will become hard rubber after drying. Just like auto sealer.

That is the reason why the sound of racing exhausts becomes annoying, therefore regular maintenance is indeed necessary. This is done so that you can avoid such problems.

How to Maintain Racing Exhausts to Keep Them Durable

To prevent the exhaust on your motorcycle from easily getting damaged and producing annoying sounds, regular maintenance must be carried out. In doing so, it doesn't have to be complicated; you just need to clean it periodically and regularly, such as cleaning the exhaust holes, rust, and others.

However, when the rainy season comes, you may need to maintain it more often, and regularly warm up the motorcycle, okay? In addition, perform regular service on your motorcycle at a trusted workshop.

One of the best workshops is Daihatsu, where you can perform motorcycle maintenance at an official workshop and receive the best service quality that matches your motorcycle type.

Also enjoy the online service booking feature if you want to schedule service without having to wait in long lines. For more details, check our official website here!

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