How to Make a Car Exhaust Louder Without Buying Anything

How to Make a Car Exhaust Louder Without Buying Anything

The catalytic converter and muffler operate to dampen sounds and control vehicle emissions. Some states require that all vehicles manufactured after a certain date have both. Increasing the noise level of your exhaust on newer vehicles requires purchasing aftermarket exhaust systems. Older vehicles, such as a 1960's era truck, are grandfathered in, allowing for the use of straight piping. You can modify the exhaust on an older vehicle easily without having to buy any expensive parts.

Things You'll Need

Angle grinder

Drill

Instructions

Cut the exhaust pipe with an angle grinder where the exhaust pipe meets the muffler coming out of the engine.

Cut the hangers on the disconnected pipe with the angle grinder and remove the excess pipe. You will see two to three hangers connecting the pipe and the frame extending towards the rear of the vehicle. Cut all of them.

Drill three holes near the tip of the remaining pipe along the bottom edge. The holes will cause some reverberation, increasing the noise level.

What Is the Function of the Exhaust System?

What Is the Function of the Exhaust System?

An exhaust system carries waste gases and other combustion products away from an automobile engine. It allows the vehicle to operate with minimal noise, smoke and pollution transmitted to the environment. A properly maintained exhaust system is essential to the clean and efficient operation of the car.

Function
For the internal combustion engine that drives trucks, cars and motorcycles, the exhaust system carries waste gases away from the engine and through a system of manifolds and pipes. The exhaust system is an essential part of a vehicle engine and must be kept in good working order, otherwise engine performance and mileage will suffer.

Exhaust Manifold
The exhaust manifold is the first component of the exhaust system. It comprises a stainless steel, aluminum or cast-iron unit that adjoins the engine's combustion cylinders and collects exhaust gases from the combustion process. Car enthusiasts have the option of detailing their engine with exhaust headers or extractors, which are a series of pipes that are individually linked to the cylinders. The exhaust is funneled into a collector that directs the exhaust to the secondary components of the exhaust system. This arrangement allows the engine to run more efficiently.

Mufflers
A system of exhaust pipes carries the exhaust gases through a muffler, which contains a series of baffles that damp the noise of the engine combustion and escaping gases. Without a muffler, the noise of combustion would escape directly from the exhaust pipe, creating a tremendous distraction for drivers and pedestrians. By law in all states, automobile mufflers must be in good working condition.

Catalytic Converter
A catalytic converter completes the ignition of gases that have been incompletely burned within the engine's combustion chamber. The catalytic converter prevents pollutants such as carbon monoxide and nitrogen oxides from escaping into the atmosphere. By law, the catalytic converter must be in good working condition, and many states require annual testing of this component to assure that the vehicle is emitting minimal pollutants into the atmosphere.

Tailpipe
The engine exhaust finally reaches the tailpipe, which is made of stainless steel or steel tubing. The exhaust pipe vents the gases behind or above the vehicle. Modern exhaust systems have reduced automobile pollutants by a considerable amount in the past few decades and have helped to reduce smog and other pollution in most large cities.