In the know: How loud can your exhaust pipes be?

2021 Honda City RS CVT

Loud exhaust pipes have since been a symbol of power and performance in the automotive scene. Race cars and motorcycles are typically fitted with often noisy, high-performance exhausts to help teams squeeze every ounce of power from their vehicles.

KEY TAKEAWAYS

  • What is the national standard for motor vehicle exhaust noise?

    The national standard for motor vehicle exhaust noise is 99 decibels.
  • What govenment agency has set this standard?

    The government agency that has set this standard is the LTO.
  • Eventually, loud pipes have made their way out of the racetrack and into daily-driven vehicles by way of aftermarket products that most car and motorcycle owners are very fond of. Vehicles fitted with these pipes often get mixed reactions from motorists who share the same road: Sometimes a nod of approval, oftentimes a look of loathing.

    Kia Sportage GT Line

    Why the loud pipe?

    It’s not always about how cool your ride sounds. Those who believe in the saying “loud pipes save lives,” say that one of the benefits of using a loud exhaust is to let other vehicles know that you are approaching.

    While this could be true, exposure to loud noise can also be harmful not only to other drivers but also to the owner of the vehicle equipped with a loud exhaust pipe.

    How loud can your exhaust pipes be?

    The Land Transportation Office (LTO) has issued a recommended national standard of 99 decibels for all motor vehicles saying that “the sound level of the motor vehicle for exhaust of muffler shall not exceed 99 dB, taken at an engine speed of 2,000 to 2,500rpm.”

    Vehicles that exceed the national standard will be required to install an exhaust pipe that complies with the aforementioned regulation.

    Bottom line

    Most vehicles are designed to have low noise levels as exposure to loud noises can be harmful to drivers and passengers. The national standard set by the LTO is intended not only for the benefit of motorists but also to help reduce the country’s noise pollution.

    Photos from Ruben Manahan IV

    Also read: 

    In the know: Is it normal to see water come out of your exhaust pipe?

    In the know: What are mufflers for?

    Read All

    Featured Articles

    Recommended Articles For You

    Read All

    Featured Cars

    • Upcoming

    Car Articles From Zigwheels

    • News
    • Article Feature
    • Advisory Stories
    • Road Test
    • Aston Martin launches DBX S
      Aston Martin launches DBX S
      Cesar Miguel . Today
    • Toyota partners up with Waymo to accelerate self-driving tech development
      Toyota partners up with Waymo to accelerate self-driving tech development
      Cesar Miguel . Today
    • Hyundai Motor PH updates Roadside Assistance Program
      Hyundai Motor PH updates Roadside Assistance Program
      Cesar Miguel . Today
    • Nissan introduces 'Dare to Get More' summer aftersales raffle promo
      Nissan introduces 'Dare to Get More' summer aftersales raffle promo
      Cesar Miguel . Apr 30, 2025
    • Lynk & Co 900 breaks cover at Auto Shanghai 2025
      Lynk & Co 900 breaks cover at Auto Shanghai 2025
      Paulo Papa . Apr 30, 2025
    • Work wheels: vehicles that help industries move
      Work wheels: vehicles that help industries move
      Paulo Papa . Apr 30, 2025
    • Let’s check out the Nissan Patrol's classy interior
      Let’s check out the Nissan Patrol's classy interior
      Cesar Miguel . Apr 30, 2025
    • Here are the BYD eMAX 7's 4 hues
      Here are the BYD eMAX 7's 4 hues
      Paulo Papa . Apr 28, 2025
    • Isuzu mu-X's 5 elegant hues in PH
      Isuzu mu-X's 5 elegant hues in PH
      Cesar Miguel . Apr 28, 2025
    • Here's a closer look at the PH-spec BYD eMAX 7's variants
      Here's a closer look at the PH-spec BYD eMAX 7's variants
      Paulo Papa . Apr 28, 2025
    • What should you visit first at MIAS 2025?
      What should you visit first at MIAS 2025?
      Cesar Miguel . Apr 11, 2025
    • Do you really need 4x4 for overlanding?
      Do you really need 4x4 for overlanding?
      Cesar Miguel . Mar 26, 2025
    • Number coding 2025: what you need to know
      Number coding 2025: what you need to know
      Paulo Papa . Mar 09, 2025
    • EVs still require lubrication, JAMA execs say
      EVs still require lubrication, JAMA execs say
      Paulo Papa . Mar 09, 2025
    • Ensure your vehicle is Summer road trip-ready by following these tips
      Ensure your vehicle is Summer road trip-ready by following these tips
      Paulo Papa . Mar 06, 2025
    • Kia Sorento Turbo Hybrid's 4 unique features vs. most midsize SUVs
      Kia Sorento Turbo Hybrid's 4 unique features vs. most midsize SUVs
      Ruben Manahan IV . Apr 30, 2025
    • First drive: Changan Lumin
      First drive: Changan Lumin
      Cesar Miguel . Apr 22, 2025
    • JAC JS4: from daily drives to ‘vacay’ vibes
      JAC JS4: from daily drives to ‘vacay’ vibes
      Paulo Papa . Apr 22, 2025
    • First drive: Jetour X70 Lightning i-DM
      First drive: Jetour X70 Lightning i-DM
      Paulo Papa . Apr 03, 2025
    • Changan CS15: no-fuss daily driver
      Changan CS15: no-fuss daily driver
      Cesar Miguel . Mar 27, 2025