Porsche 911 997 Carrera Valved Racing exhaust | GWAPOTech JAPAN
Porsche 911 997 Carrera exhaust consists of ① exhaust manifold, ② downpipe, and ③ rear exhaust. The downpipe is included in the rear muffler section.
First, let's take a look at the typical rear muffler in the 997 Carrera series for sound tuning.
Our rear mufflers are designed primarily to enhance high-frequency sound output.
At the X section where the pipes cross, the exhaust from both left and right banks collide, creating an increase in high-frequency range and producing 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 glass wool quantities. This design ensures a sharp contrast in sound between the ON and OFF states of the valve, providing a silent mode that rivals the OEM in terms of sound suppression, tailored for a gentlemanly driving experience.
Additionally, it is possible to incorporate catalytic converters into the rear muffler section.
And finally, the last part of the sound tuning to introduce is the exhaust manifold (headers).
From the factory, the Carrera series is equipped with unequal-length exhaust manifolds, and in later models, catalytic converters are also installed. This configuration results in very low sound volume and does not produce high-pitched sound qualities.
Therefore, like with other 911 models, we at our company have developed equal-length long-tube exhaust manifolds specifically for the Carrera series.
Each tube diameter has been designed narrower than OEM specifications, and they are elongated like wind instruments to produce high-pitched sounds without distortion.
For those seeking ultra-high-pitched sounds, we recommend replacing not only the high-pitched specification rear exhaust with the X-tube design where exhausts collide on both sides, but also upgrading to these equal-length long-tube headers.
Amidst the unprecedented Carrera boom, we anticipate renewed interest in the 997 Carrera series. Enhance your everyday driving experience by adding sound tuning.
We offer a wide range of muffler cutter options to help you change your vehicle's atmosphere reasonably. Please consider exploring them.
We also offer wholesale prices, so please feel free to contact us for inquiries!
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