Porsche 911 991.2 Carrera/Turbo Series Valved Exhaust system | GWAPOTech JAPAN
The muffler for the Porsche 911 991.2 Carrera GTS and Turbo consists of ① exhaust manifold, ② downpipe, and ③ rear exhaust.
The muffler itself differs between the Carrera GTS and Turbo series not only in the position of the rear muffler outlet but also in other aspects, which we categorize separately at our company.
Firstly, let's examine the typical rear muffler for sound tuning in the 991.2 Carrera GTS and Turbo series.
Our rear mufflers feature a sound layout primarily aimed at enhancing high-pitched tones.
At the X-section where the pipes cross, the exhaust from both left and right banks collides, contributing to an increase in high-frequency range at high RPMs, thereby creating a high-pitched sound.
Furthermore, the contents of the large silencers on both sides, though not visible from the outside, are meticulously designed with calculated piping, punching, and the amount of glass wool. This design ensures a balanced contrast in sound between the ON and OFF states of the valve, providing a silent mode that rivals OEM standards in terms of sound suppression, tailored for a refined driving experience.
Next, let's look at the downpipe, which connects the rear muffler to the exhaust manifold.
The OEM downpipe is equipped with large catalytic converters due to strict exhaust gas regulations in the Eurozone. This setup significantly limits the sound volume as well.
In our company, considering that later models of the 991 series face challenges in sound tuning compared to earlier versions, we generally recommend tuning the downpipe section straight to achieve a significantly more powerful sound.
Finally, the last sound tuning component we'll discuss is the exhaust manifold (headers).
From the factory, the exhaust manifold is heavily shielded, which can be quite restrictive for exhaust efficiency and performance.
Therefore, we have innovatively designed our exhaust manifold to be completely straight, ensuring a powerful sound even in later models while also contributing to increased horsepower.
Amidst the unprecedented Carrera boom, which has already garnered significant attention, we encourage enhancing the daily driving experience with sound tuning for the 991.2 Carrera and Turbo series!
We also offer wholesale prices, so please feel free to contact us for inquiries!
https://www.gwapotech.com/product-page/porsche911-991-2-titanium-rear-exhaust-tips-sus304-down-pipes
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