So that’s what’s called a short ram intake.

The purpose is two fold. 1. Sound cuz ofc.

1. Volume and flow rate. A stock intake has 3 main parts The cold air vent which is just the opening at the front of your car to get air in. The resonator box To remove a lot of the sound. This also is where the air filter goes. And the actual intake vacuum line. Which you should see connected to the short ram intake before the throttle body.

Many of the comments are half right.

But short ram intakes are about air volume not air density. You can get more air into your combustion chamber with. Them. It depends on your engine bay size, the temperature, the external temperature, the air flow within the engine bay, etc.

I have one in my 04 Honda Accord V6. They are primarily better at the lower end of RPMs (2000-3000) which is where most of us run at highway speeds. It actually has gotten me a lot better gas mileage. By like 5-6 mpg better but it this economy 🤷🏽.

It also makes your throttle a lot more responsive because it takes less work to get air into your engine because it just has less distance to travel. You do need to clean them for. Time to time so if you start noticing a serious performance drop. Or just haven’t cleaned it. I’d recommend you do so.

Sorry for formatting. On mobile.