Auto Parts Guide

Exhaust Pipe System: How to Install an Exhaust System in Your Car

Straight Pipe Exhaust Systems

When the engine burns fuel into mechanical energy, the liquid fuel becomes a gaseous state full of toxic chemicals. Instead of letting these exhaust gases be discharged into the air we breathe, use an exhaust system to channel these gases through the cleaning process, reduce combustion noise and vent filtered air from the back of the vehicle. In order to guide these gases through the converters and mufflers, metal exhaust pipes are used. These metal pipes can withstand high temperatures, and the corrosive properties of gasoline and road debris can last for many years.

How much does it cost to replace the exhaust pipe?

The average cost of replacing the exhaust pipe is between US$803 and US$830. The labor cost is estimated to be between US$97 and US$122, while the price of parts is between US$706 and US$708.

This range does not include taxes, nor does it consider your unique location. Related repairs may also be required.

How does the exhaust pipe work?

exhaust system

The exhaust pipe works like any other pipe because it guides exhaust gas from one place to another. It starts from the exhaust manifold flange and moves down to a dedicated pipe called a “flexible pipe”, and then a new part of the exhaust pipe extends from the flexible pipe to the catalytic converter. This part of the pipeline will contain an oxygen sensor, allowing the computer to analyze the exhaust gas before cleaning in the catalytic converter. After the catalytic converter, another part of the exhaust pipe moves the cleaned exhaust gas to the muffler, and the oxygen sensor on this part will allow the computer to analyze the cleaned gas. This provides a measure of the efficiency of the catalytic converter. Finally, install a muffler to reduce engine noise. Attached to the muffler is a tail pipe that directs the gas downwards, keeping the heat away from the rear of the vehicle. This is a typical system with many configurations for these parts.

What are the symptoms of a bad exhaust pipe?

When a part of the exhaust pipe fails, you may notice whether the indicator light of the engine is on, depending on the part of the perforation, but you will definitely notice that the sound of the engine has become louder and may lose power Or use too much fuel. That’s because the engine may be compensating for false readings from the oxygen sensor. Visible clues include rust or damaged exhaust pipes, indicating that the area may leak exhaust gas and prevent exhaust gas treatment.

6 Signs and Symptoms of Exhaust Problems in Your Car

  1. The engine is too noisy

The first sign of exhaust problems that you should pay attention to is if your engine is too noisy. If the exhaust manifold gasket fails, it will cause an exhaust leak, which sounds like a hissing or knocking sound. The sound is particularly loud when starting a cold or accelerating the vehicle.

  1. Reduce Power and Acceleration

If there is a problem with the exhaust, it will start to affect the performance of the engine. You will not be able to accelerate as quickly, and you will not get the same momentum when accelerating. If the exhaust leakage problem is not solved, the problem will continue to worsen.

  1. Reduced Fuel Efficiency

When power and acceleration decrease, the fuel efficiency of the vehicle usually decreases. In order for your car to function in the same way as exhaust, it must work harder, so it needs to use more fuel. You might think that the cost of replacing or repairing the exhaust is high, but if you don’t get it fixed, you will start to spend more on gasoline.

  1. Burning Smell From the Engine Bay

If the gasket fails and starts to leak near any engine wiring or any plastic parts under the hood, the heat from the exhaust gas may cause these parts to burn. Then, those burning parts release a burning smell, which smells like a burning engine. It will also emit a little smoke, but you should not wait until you have checked it out to see the smoke. If you start to smell any burning smell or see any smoke, you should check the vehicle immediately to avoid danger to yourself or the passengers.

  1. Suspended exhaust pipe

If the exhaust pipe is suspended on the ground or dragged on the ground, it should be fixed immediately. If any part of the pipe breaks, even the part that did not cause the leak, it may begin to hang under the vehicle. Dragging is not only dangerous to you, but also dangerous to drivers around you if you fall from the vehicle.

  1. Odor

If you start to smell gasoline in your car while driving, it may be a sign of exhaust problems. It is usually caused by an exhaust pipe or exhaust pipe that is damaged and starts to leak. When this happens, the fumes in the gasoline will escape through wherever possible. Sometimes, that place is in your car.

These are just a few ways to tell you if your car has exhaust problems. If you are worried or find any of these symptoms in your vehicle, you should take it to the dealer for inspection or replacement.

Can I drive with a bad exhaust pipe?

It is possible to drive the vehicle without part of the exhaust system, but this is not recommended. In addition to the pollution and legitimacy caused by the normal operation of the exhaust system, a leak in the exhaust pipe may also cause you to lose fuel mileage, and the hot discharge from the exhaust leak may overheat one of many components on the chassis. Repairing the exhaust system as soon as possible is the best measure to restore your vehicle to normal working conditions.

How often does the exhaust pipe need to be replaced?

Exhaust systems can cause enough failures that specialized exhaust system shops have sprung up in most cities and towns across the country. However, typical repair work might be mufflers, catalytic converters, oxygen sensors or exhaust manifold gaskets. Exhaust pipes are corrosion resistant, and this material takes many years to decompose under dry conditions. This is why most vehicles in dry climates will never need to replace part of the exhaust pipe. Those who live in areas with frequent snow, road salt, heavy rain and high humidity need to replace the exhaust pipe frequently, and in the northeastern United States, this has become a necessity in just a few years.

muffler replacemen

How to Install an Exhaust System in Your Car

The exhaust system of a car plays a very important role in keeping the car efficient and driving quietly. It helps to move the exhaust gas generated by the engine from the front to the rear of the vehicle and discharge it at the rear. Certain components on the exhaust system (such as resonators and mufflers) also help reduce engine sound. Without the exhaust system, the sound of each car will be as loud as a racing car.

If you are installing a new exhaust system, it is likely that you are upgrading your vehicle’s exhaust for sound and performance, or the existing exhaust system on your car is old and rusty and can no longer work efficiently. With the right tools, parts and patience, you can perform the installation of the exhaust system yourself. As long as you use exact matching replacement parts, the job is very simple.

If you are looking for some extra features and deeper sounds, this will be an interesting upgrade, and it may arouse some curiosity after the installation is complete.

Installing the exhaust system

Materials Required

  • 6 pointed sockets – 10mm through 19mm.
  • Floor Jack
  • Gaskets – new and the required number for vehicle
  • Gloves
  • Hardware – new bolts and nuts to reassemble new exhaust
  • Penetrating Oil (Best to use is PB Blaster)
  • Ratchet
  • Replacement bolt-on exhaust system
  • Rubber exhaust hangers – new.
  • Safety Glasses


Step 1: Purchase the exhaust. It is recommended to purchase a bolted exhaust system for your specific vehicle. You can look around for the best deals for factory replacement or free-flowing exhaust units.

Tip: Most parts can be obtained from a local parts store, online, a local exhaust shop or a dealer of the car manufacturer.

Tip: Please be sure to check your local laws to install after-market exhaust devices to ensure their use on the road or other purposes is legal. A good place to check is the auto repair bureau in your state.

Step 2: Park it on a flat surface. Ensure that the vehicle is on a flat surface and turned off.

Step 3: Raise the car. Use floor jacks and safety jack stands to safely lift the vehicle off the ground. Place all four jack points under the vehicle.

Step 4: Spray the hardware. Fully spray all hardware (nuts and bolts) with PB Blaster and let it soak for about 5 minutes.

Step 5: Remove the muffler. Starting from the rear of the vehicle, first remove the muffler using a suitable size 6 pointed socket and ratchet.

The two bolts should be removed from the muffler. After removing the hardware, slide the muffler off the rubber hanger, and then completely remove it from the car.

Set aside. If your vehicle is equipped with two mufflers, you will repeat the process for the second muffler.

Tip: Please make sure not to use a 12-point socket at this time. They can cause nuts and bolts to round out, making them difficult to remove.

Tip: Spraying WD40 on the rubber hanger helps to slide off the parts on the exhaust system.

Step 6: Remove from the catalytic converter. Remove the bolted middle part from the catalytic converter.

The flange attached to the end of the catalytic converter may have two or three fixed bolts that need to be removed. After removing the hardware, slide the pipe off the rubber coat hanger and set it aside.

Step 7: Remove the rubber hanger. Remove the old rubber hanger from the vehicle and replace it with a new one.

Step 8: Put on new rubber hangers. Slide the new middle pipe onto the new rubber hanger.

Step 9: Slide the new muffler onto the new rubber hanger.

Step 10: Put on the new gasket. Install a new gasket between the catalytic converter and the new exhaust. Use new hardware to fix the flanges together. Tighten by hand.

Step 11: Fasten the flange. Locate the flange adjoins to the middle pipe of the muffler. Install the new gasket and fasten the flange with the new hardware by hand.

Step 12: Tighten the bolts. Fine-tune the position of the exhaust system. Tighten the bolts on each flange and check whether the exhaust port can be freely hung on the rubber hanger.

Make sure it is not pressed against the frame, fuel tank or heat shield. The bolt should be tightened 1/4 to ½ turn and then tightened.

Tip: With the exhaust hanging and the hardware loose, you may have to twist, shake or rotate the pipe to the desired position. please wait patiently.

Step 13: Check the work. When the vehicle is still in the air, start it and listen for the new exhaust. Check each flange for signs of exhaust gas escaping. If there is a leak, you should also be able to hear the leak.

Warning: Feel it but do not touch it to allow exhaust gas to escape each flange. Handle with care, because the exhaust temperature will get hotter the longer the vehicle is on.

Step 14: Put the car back on the ground. After confirming that there is no leak, shut down the vehicle. Use a floor jack to remove the safety jack stands, and then put the car back on the ground.

Related Posts