Varies from car to car.
Side branch resonators in a car's exhaust system help to reduce noise and improve the overall sound quality of the exhaust. They work by canceling out specific frequencies of sound waves produced by the engine, resulting in a quieter and more pleasant exhaust note.
I believe it's because you have the resonators in. They act like a "pre-muffler" to keep the tone down. removing these would then make your exhaust louder. You may want to keep them, however, in case you don't like the sound afterwards and can re-install them later.
The two main types of vehicle silencers are mufflers and resonators. Mufflers primarily reduce the noise produced by the engine's exhaust gases, helping to comply with noise regulations. Resonators, on the other hand, are designed to fine-tune sound frequencies and enhance the overall sound quality, often used to achieve a specific exhaust tone. Both components work together to improve the acoustic performance of a vehicle's exhaust system.
Google: "Parametric Excitation in Frequency Resonators".
The SRT-4 exhaust will fit, but it will need to be cut and re-welded near the front of the car where it goes to the exhaust manifold. In other words, it will take a bit of custom work and extra tubing, but the exhaust can be made to fit. The exhaust also does not sound very good on a stock neon since it only has resonators and no muffler.
The actual structure
An exhaust resonator is a component in an automotive exhaust system designed to reduce noise and improve sound quality. It works by utilizing sound waves to cancel out specific frequencies, thereby minimizing undesirable sounds and enhancing the overall exhaust note. Additionally, resonators can help improve exhaust flow, contributing to better engine performance. Overall, they serve to create a more pleasant auditory experience while driving.
The exhaust pipes in automobileexhaust systems are designed as acoustic resonators that work with the muffler to reduce noise, by making sound waves "cancel each other out"[1]. The "exhaust note" is an important feature for many vehicle owners, so both the original manufacturers and the after-market suppliers use the resonator to enhance the sound. In 'tuned exhaust' systems designed for performance the resonance of the exhaust pipes is also used to 'pull' the combustion products out of the combustion chamber quicker. (From Wikipedia)
The three main vocal resonators are the chest, throat, and head. These resonators amplify and enrich the sound produced by the vocal cords, resulting in a full and dynamic vocal tone. Proper control and coordination of these resonators are key to achieving a strong and resonant voice.
resonators
Resonators in your body are located in your head neck and chest cavity, oral nasal and phearyngeal cavities.
The speech resonators are three: 1. Nasal (Nose) 2. Oral (Mouth) 3. Pharyngeal (Throat) (see the related links below)