how does adding an exhaust system to your car give it more power?

Answer 1

If u get a good exhaust system, then the exhaust leaves the car easier and under less pressure, this means the engine doesnt have to build up as mush exhaust pressure to get rid of the exhaust, giving you more power out of ur engine.

Answer 2

its not adding an exhaust system its called changing it.. in stock cars the exhaust system is tuned to let a constricted amount of airflow; air to fuel ratio is bad.. if u get a new exhaust system usually people get a bigger one r one with more holes, thus the air flow is easier and better and improves the fuel to air ratio.. this causes a power increase but most people don't do it right so it also causes an improper air flow and a stupid huge noise.. if u do it right those problems don't exist and yes the power does go up very much depending on ur new exaust system..

Answer 3

The factory exhaust on cars was designed to be quiet and somewhat fuel efficient. Replacing the exhaust allows the engine to breath better, and more air for the engine allows it to expel exhaust gasses faster so the car can burn fuel quicker and the car gets more horespower. I have custom exhaust on my crx and a AEM intake on the crx and a Injen intake on my prelude. Gains vary between 10 to 20 horsepower.

Answer 4

It doesnt really add power it frees it up. The motor has hp in it that can be freed up. A basic honda civic ex has 127hp at the engines crank, about 100 whp, so by adding an exhaust you free up around 5 hp that the motor had in it. All bolt ons like intakes, header, ect.. all just free up power that was allready in your motor it was just restricted for smooth operation and economy (gas milage, emmisions).

Answer 5

Allows for better exhaust flow on the car. The bad air escapes easier and allows for more clean air to come into the engine.

Answer 6

Because it takes power to push the exhaust through the muffler. The less restriction, the less power it takes to send the exhaust gas out of the motor.

Answer 7

the bending and size of the pipe helps to increase velocity of the back pressure allowing exhaust to move faster and easier

Answer 8

It lessens resjtirction in the engine. But you do need some sort of back-pressure otherwise, the engine wont run.

Answer 9

think about it you are on top of mount everest,the air is so thin and scarce you have a hard time breathing as soon as you come down you feel like you can inhale and exhale.which is better you think about that when you put on a cat-back.

Answer 10

It's just like your mouth and your butt. When they both work equally (input/output)... your body works great. But hold in just one fart... and THAT"S where shitty ideas come from, lol!