Will Replacing the Exhaust Header Make the Sound Louder?
2 Answers
Replacing the exhaust header will make the sound louder. Header: The "banana" refers to the header of the exhaust pipe, named for its banana-like shape, hence called "banana" or "header." Modern headers are typically integrated, while some older cars in movies may feature exposed headers, though they are rarely seen in daily life. Mid-Pipe: This connects the header to the tailpipe and can also improve horsepower by 3-4 HP. Usually, the mid-pipe is a long tube linking the header and tailpipe, often equipped with a resonator. Tailpipe: The exhaust tailpipe includes the piping, muffler, and exhaust tip (tailpipe outlet). Its primary functions are noise reduction and decoration, making it the most crucial part of the exhaust system. The exhaust tip is a component installed at the end of the factory exhaust.
After replacing the exhaust manifold, the sound does become noticeably louder. I've modified my car's exhaust system myself, and the manifold is the very first section of the exhaust pipe. The stock manifold has smaller pipe diameters and more bends, which creates backpressure that restricts airflow. Upgrading to a larger-diameter high-performance manifold allows exhaust gases to flow out more smoothly, naturally resulting in louder airflow noise. It's like replacing a thin water pipe with a thicker one—the sound of flowing water becomes more pronounced. Moreover, the change in sound can bring some performance benefits, such as more exhilarating acceleration and faster engine response. However, be aware that excessive noise might disturb neighbors or attract attention from traffic police, especially in areas with strict noise regulations. Additionally, fuel consumption may increase slightly after the modification because optimizing airflow sometimes requires further adjustments, such as ECU remapping. Overall, if you're after a more thrilling driving experience, it's worth trying—just don't go overboard to avoid unnecessary trouble.
