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AUDI S8(D5) Racing Valved Exhaust system Production | GWAPOTech JAPAN

AUDI S8(D5) Racing Valved Exhaust system | GWAPOTech JAPAN


AUDI S8(D5) Racing Valved Exhaust system | GWAPOTech JAPAN
AUDI S8(D5) Racing Valved Exhaust system | GWAPOTech JAPAN


The rear exhaust system for the Audi S8 (D5) consists of:

  1. Downpipe

  2. Center Pipe

  3. Rear Exhaust

Let's start by introducing the components from the front, beginning with the downpipe.




The stock downpipe is equipped with a very large silencer, which restricts exhaust efficiency.




AUDI S8(D5) Racing Down pipes | GWAPOTech JAPAN
AUDI S8(D5) Racing Down pipes | GWAPOTech JAPAN

To optimize exhaust efficiency, we offer a straight pipe option as well as a 200-cell sports catalyst option for an additional fee.


Next, let's look at the center pipe.



アウディS8(D5) 可変式レーシングマフラー | GWAPOTech JAPAN
アウディS8(D5) 可変式レーシングマフラー | GWAPOTech JAPAN


The stock center pipe features a large silencer, which limits sound volume and results in a muffled low-frequency sound.



AUDI S8(D5) Racing Valved Exhaust system | GWAPOTech JAPAN
AUDI S8(D5) Racing Valved Exhaust system | GWAPOTech JAPAN

AUDI S8(D5) Racing Valved Exhaust system | GWAPOTech JAPAN
AUDI S8(D5) Racing Valved Exhaust system | GWAPOTech JAPAN


AUDI S8(D5) Racing Valved Exhaust system | GWAPOTech JAPAN
AUDI S8(D5) Racing Valved Exhaust system | GWAPOTech JAPAN


AUDI S8(D5) Racing Valved Exhaust system | GWAPOTech JAPAN
AUDI S8(D5) Racing Valved Exhaust system | GWAPOTech JAPAN

Our center pipe is designed to be a full-length replacement from the front pipe, significantly reducing weight compared to the stock part. Additionally, we offer an option to install a resonator to minimize the impact on sound volume and achieve a clean sound.


For the center cross-section where the left and right exhausts merge, we also offer the option of an X-pipe to enhance high RPM sound frequencies.


Finally, let's introduce the rear exhaust.






The stock rear exhaust features a very large silencer, which reduces exhaust efficiency and results in a muffled low-frequency sound.



AUDI S8(D5) Racing Valved Exhaust system | GWAPOTech JAPAN
AUDI S8(D5) Racing Valved Exhaust system | GWAPOTech JAPAN

AUDI S8(D5) Racing Valved Exhaust system | GWAPOTech JAPAN
AUDI S8(D5) Racing Valved Exhaust system | GWAPOTech JAPAN


AUDI S8(D5) Racing Valved Exhaust system | GWAPOTech JAPAN
AUDI S8(D5) Racing Valved Exhaust system | GWAPOTech JAPAN

AUDI S8(D5) Racing Valved Exhaust system | GWAPOTech JAPAN
AUDI S8(D5) Racing Valved Exhaust system | GWAPOTech JAPAN

Our rear exhaust is designed to be lighter than the stock part and incorporates an adjustable valve system that allows you to switch between different sound levels depending on your needs.


To create a clear distinction between the valve's ON and OFF positions, we use a larger resonator. In silent mode, it is designed to be at a similar volume level as the stock silent mode, making it suitable for nighttime or residential areas while maintaining a gentlemanly specification.


When the valve is open, it allows the engine to fully unleash its potential, creating a racing sound that enhances your driving experience.



AUDI S8(D5) Racing Valved Exhaust system | GWAPOTech JAPAN
AUDI S8(D5) Racing Valved Exhaust system | GWAPOTech JAPAN

We also offer a wide range of exhaust tips, so you can select the product that best matches your vehicle’s image.


We offer wholesale pricing as well, so please feel free to contact us!


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