* Subjectivity: "Loudness" is very subjective. What one person considers loud, another might find mellow.
* Legal Restrictions: Noise regulations vary by location. What's legal in one area might be illegal in another.
* Exhaust System Complexity: There are countless exhaust system variations: single vs. dual, cat-back vs. full system, different muffler brands, etc. Each combination produces a unique sound.
* Engine Modifications: Engine modifications, like headers or tuning, can significantly impact the exhaust sound.
Instead of focusing on "loudest," consider these factors:
* Sound Quality: Do you prefer a deep rumble, a raspy growl, or a high-pitched roar?
* Performance: Some exhausts can improve horsepower and torque, while others are purely for sound.
* Durability: Choose a quality system that will last.
* Installation Complexity: Some systems are easier to install than others.
To find the right exhaust for you:
1. Research: Check out online forums, YouTube videos, and reviews from other Mustang GT owners.
2. Listen in Person: If possible, visit a shop and listen to different exhaust systems in person.
3. Consult with a Mechanic: A qualified mechanic can advise on compatibility with your car and help you choose a system that meets your needs.
Remember, choose an exhaust system that balances performance, sound, and legality.