How many decibels is a stock Harley exhaust?

A Harley out of the factory is 80 decibels. A Harley with straight pipes (no muffler) gives off 100 decibels, the same as a car horn at three feet according Purdue University. By comparison, an idling car emits 35-to-45 decibels and about 70 decibles at freeway speeds. But remember the decibel stem is logarithmic.

How many decibels is a loud Harley?

80 decibels
when Harleys are sold, they emit 80 decibels, which is already loud (about the sound equivalent of a lawn mower) and arguably in violation of the city’s night time noise restrictions (which state that “no power tools or equipment… may be operated between 9 p.m. and 8 a.m.”).

Are Harleys loud from the factory?

Factory-produced Harleys are loud, yes, but not louder than is permitted under the law. Federal law stipulates an 80-decibel limit for all motorcycles. Harley-Davidson has to comply with this law, and every bike coming out of an H-D factory is not louder than 80db.

Can you make stock Harley exhaust louder?

Three ways of making your Harley pipes louder are re-tuning the engine, removing the baffles or by swapping out baffles on certain models of Harley-Davidson motorcycles.

How loud is a Harley with straight pipes?

100 decibels
A Harley with straight pipes (no muffler) gives off 100 decibels, the same as a car horn at three feet, according to Purdue University. By comparison, an idling car emits 35-45 decibels and in the low 70s at freeway speeds; a Harley out of the factory is 80 decibels. But remember the decibel system is logarithmic.

Are Vance and Hines pipes loud?

The sound was loud and about 85-86 Db standing about 50 feet away. Then I took out the standard baffles that came with the Vance & Hines pipes. Wow the sound was very loud and about 90-91 Db standing about 50 feet away. Then Installed these Baffles and the sound was much better, about 79-80 Db standing about 50 feet.

Are Screaming Eagle pipes louder than stock?

Screaming Eagle pipes are Harley product pipes that flow more than stock and are louder. Performance increase is minimal. SE pipes used to be much louder in past years and flowed more air when they were stamped “off road” use.

How can I make my stock motorcycle exhaust louder?

How to Make My Motorcycle Exhaust Louder

1. Install an Aftermarket Exhaust. Depending on what type of motorcycle you ride and what type of exhaust you install, you can change how your motorcycle sounds.
2. Tune or Change Your Stock Carb.
3. Buy the Best Aftermarket Ignition You can Get.
4. Shop Customized Exhaust Systems and Mufflers.

How much louder is 95 dB than 85 dB?

Because the decibel scale is logarithmic, every 10 decibels you add multiplies the intensity of the sound 10 times. This means that 95 decibels is 10 times louder than 85 decibels and 100 times louder than a 75 decibel sound. Therefore, don’t take any noise level above 85 dB lightly.

How loud is too loud for a motorcycle?

Researchers have found that people who are exposed over long periods of time to noise levels at 85 dBA or higher are at a much greater risk for hearing loss. Sounds at or below 70 dBA are generally considered safe.