Stock Exhaust

Stock Exhaust - Boise Muffler Shop

There are approximately 600,000 vehicles registered in Ada County, Idaho. At some point those cars will need to have their exhaust systems fixed or replaced. Since we opened in 1984, big hair disappeared, Van Halen became classic rock, and Twisted Sister… well, who knows?

But one thing remains!! Our commitment to our customers and our craft. We have been fixing and replacing stock exhaust systems all of this time and plan on being around as long as automobiles exist.

What does the Exhaust System Do?

The exhaust system has many components that work together to keep your engine running at peak performance, reduce emissions, and noise from the engine. Many modern vehicles also use the exhaust system to power a turbocharger.

Lets have a look at each of it’s component which collectively makes it an Exhaust system.


Most cars are shipped with exhaust manifolds because they keep material cost down and provide an economical way to gather the exhaust into the catalytic converter. It is generally bolted directly to the engine with a gasket to seal the two metal pieces together and prevent leaks. The exhaust manifold catches super hot gases coming from the engine and will by the hottest component under the hood of a car.


Oxygen or O2 Sensors are located on the exhaust system. It measures the difference between the amount of oxygen in the exhaust stream and the amount of oxygen in the ambient air. Modern vehicles use this data to adjust the air/fuel ratio in real-time and increase your engines efficiency.


This is the component most people understand because it “muffles” the sound of the motor. The muffler uses baffles to equalize the pressure in the tailpipe and reduce noise.

Exhaust Pipe /
Tail Pipe

All of these components are connected by piping that ends at the rear or side of your vehicle.


The catalytic converter is designed to reduce harmful emissions by forcing the exhaust gases through a honeycomb of rare earth metals, namely Platinum, Palladium and Rubidium.

  • Platinum and Rubidium break apart Nitrous Oxide (N2O) and release Nitrogen (N2) back into the atmosphere.
  • The catalytic converter uses the oxygen from the first stage (and oxygen from the exhaust) to convert carbon monoxide (CO) to carbon dioxide (CO2).
  • Platinum and Palladium will oxidize any unburned hydrocarbons into water (H2O) and more Carbon Dioxide.
  • Finally The whole system is surrounded by ceramic material to keep the system hot enough for the chemical reactions to take place.

How Much Does Exhaust Systems and Muffler Cost?

Unfortunately, we have to take a look to find out exactly what’s wrong with the exhaust system before we give you a quote. But call us on the phone or contact us and we can give you a ballpark estimate based on your make, model and symptoms. Sean Page and the crew do business on trust and a handshake, so we’re always up front and ask before we do any work!

You can rest assured that when it comes to car mufflers and exhaust repair, we want to be your first choice muffler shop in Boise. We work hard to offer the best value and workmanship.

How Do I Know If There is a Problem with My Exhaust System?

  • Engine Noise - If your car engine suddenly starts sounding very loud, you need to have your exhaust system checked.
  • Vibrations - If your car picks up a vibration that coincides with your motor revving up and down you should visit your friendly exhaust shop.
  • Rattling - If you hear clanking, clunking or rattling from underneath the car, your exhaust mounts and brackets could be loose or broken.
  • Check Engine Light - If your Oxygen sensor fails or if your Catalytic converter fails, you will get a general engine failure.
  • Losing Power or Acceleration - This can also be a sign that your O2 sensor is not working properly or the Catalytic Converter is failing.
  • Backfiring - Loud booms from the tail-pipe are highly discouraged and dangerous in inner-cities. In Boise, Idaho, you’ll probably just scare an old lady.