To put it simply – yes, an exhaust header will slightly improve the sound of your car. Exhaust headers are wider and thinner when compared the stock system. These characteristics allow the sound vibrations to flow better and exit the car – allowing for a louder sound.

Do headers increase exhaust sound?

Exhaust headers are rarely found stock on vehicles; most vehicles have what is called a standard exhaust manifold. Headers decrease restrictions, therefore increasing horsepower and sound.

Do open headers make your car louder?

Open headers will also make your car extra loud, and you may not be able to talk with your friend that is sitting next to you. Personally, I ran open headers on numerous cars, just to test them out. ... I will also touch a bit on tuning (in case you are serious about trying out open headers).