One of the most popular performance upgrades for Euro cars are aftermarket exhaust installations. Yes, adding an exhaust tip can make an Audi look sportier. And yes, an exhaust modification can make your VW roar across a city block, turning heads as you race by. But aside from these awesome benefits, Audi and VW performance exhaust systems have an important purpose that ultimately boosts the power and speed of automobiles.
The exhaust system is one of the most misunderstood bolt-on performance solutions on the market. The basic concept is to (1) route the heated gas (burning fuel and air) generated during the compression stroke away from the passenger compartment, and (2) increase the power output of an engine by improving airflow and efficiency.
Performance Exhaust Parts and Components
That said, let’s take a look at some of the important parts within an exhaust system.
• Headers - Manifold, or headers, are designed to collect exhaust and vent gas from the cylinders into one. Inefficiencies here can cause back pressure and restrict engine performance. Performance headers are designed with smoother bends and wider pipe diameters to encourage pressure to flow through the pipes and not back towards the cylinders.
• Uppipe and Downpipe – These set of pipes are the portion of the exhaust that connects the engine to the rear exhaust piping.
• O2 Sensor – The factory ECU compares the readings from a pair of oxygen sensors to measure the effectiveness of the cat. When a high-flow cat is used the exhaust gases are able to pass by the cat at a much faster rate, disrupting the readings and causing the Check Engine Light to appear. Aftermarket sensor spacers retract the second oxygen sensor from the direct flow of gases and restore the balance that the ECU requires when using a high-flow cat.
• Catalytic converter – is the portion of the exhaust system that reduces air pollution
• Cat Delete – removing the catalytic converter will result in a louder exhaust and less restrictive air flow. In most cases, this option is illegal so check with local emissions.
• Catback - Catback refers to everything from the catalytic converter back to the muffler.
• Turbo back - Turboback means everything from the turbo back, including the downpipe and catback.
• Muffler – acts as a silencer and is the last stop for exhaust gases before reaching the tail pipe and exiting the exhaust system
• Tail pipe – refers to the pipe that emits gas from the car’s exhaust and out into the air
In conclusion, the factory exhaust system is designed to be cost-efficient, which doesn’t necessarily equate to performance. Usually then, the stock exhaust restricts air flow, causing back pressure in the turbo causing it to lag. By upgrading your exhaust system and increasing the size of piping, you release all of that trapped air for the engine to breathe freely. The result is more power and torque throughout the powerband, quicker throttle and boost response, which is a goal for any Euro car enthusiast.
Author Bio: Jennifer Bradford is an expert content writer with an extensive experience in writing on varied topics such as electronic devices, relationships, health and beauty, finance and automobiles. In this article she focuses on Volkswagen aftermarket performance parts.
The exhaust system is one of the most misunderstood bolt-on performance solutions on the market. The basic concept is to (1) route the heated gas (burning fuel and air) generated during the compression stroke away from the passenger compartment, and (2) increase the power output of an engine by improving airflow and efficiency.
Performance Exhaust Parts and Components
That said, let’s take a look at some of the important parts within an exhaust system.
• Headers - Manifold, or headers, are designed to collect exhaust and vent gas from the cylinders into one. Inefficiencies here can cause back pressure and restrict engine performance. Performance headers are designed with smoother bends and wider pipe diameters to encourage pressure to flow through the pipes and not back towards the cylinders.
• Uppipe and Downpipe – These set of pipes are the portion of the exhaust that connects the engine to the rear exhaust piping.
• O2 Sensor – The factory ECU compares the readings from a pair of oxygen sensors to measure the effectiveness of the cat. When a high-flow cat is used the exhaust gases are able to pass by the cat at a much faster rate, disrupting the readings and causing the Check Engine Light to appear. Aftermarket sensor spacers retract the second oxygen sensor from the direct flow of gases and restore the balance that the ECU requires when using a high-flow cat.
• Catalytic converter – is the portion of the exhaust system that reduces air pollution
• Cat Delete – removing the catalytic converter will result in a louder exhaust and less restrictive air flow. In most cases, this option is illegal so check with local emissions.
• Catback - Catback refers to everything from the catalytic converter back to the muffler.
• Turbo back - Turboback means everything from the turbo back, including the downpipe and catback.
• Muffler – acts as a silencer and is the last stop for exhaust gases before reaching the tail pipe and exiting the exhaust system
• Tail pipe – refers to the pipe that emits gas from the car’s exhaust and out into the air
In conclusion, the factory exhaust system is designed to be cost-efficient, which doesn’t necessarily equate to performance. Usually then, the stock exhaust restricts air flow, causing back pressure in the turbo causing it to lag. By upgrading your exhaust system and increasing the size of piping, you release all of that trapped air for the engine to breathe freely. The result is more power and torque throughout the powerband, quicker throttle and boost response, which is a goal for any Euro car enthusiast.
Author Bio: Jennifer Bradford is an expert content writer with an extensive experience in writing on varied topics such as electronic devices, relationships, health and beauty, finance and automobiles. In this article she focuses on Volkswagen aftermarket performance parts.
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