Here is a dumb question..

What does an exhaust do. Other then make the car louder when driving. I am assuming it pumps more horse power into the car and makes the car look better. But really, what does it do.

I do know this as well. People around my block get tickets if their exhaust is really loud so they need a silencer.

My question is still whats the performance enhancement of this part or is it more for look and sound?

Also whats the cold air intake for?

What do the HID's do, they merely to make the light a different color or can u actually see better in the dark?

Yes i know dumb questions. but still questions.. humor me

 

google.com

 

Haha ok.

An engine sucks in air and fuel, compresses it, ignites it, and spits it back out.

The faster it can do this, the faster it can make power. When a car is designed at the factory, it's designers have to take certain things into consideration, like emissions regulations, fuel consumption, and driveability. So the designers make an exhaust that is quiet, and will meet or exceed all emissions laws in the market the car is being designed for.

However, this design is often quite detrimental to performance, as there are several baffles or resonators in an exhaust, as well as a catalytic converter. These things slow down the speed of the exiting exhaust gases, which robs the engine of power.

On the intake side, we all know that the colder the air, the more dense the air is. When an intake charge is colder, it posseses more kinetic energy than warm air. Basically it explodes bigger when combined with fuel and spark. This generates power. Again, when designing a car, manufacturers consider factors when planning out the intake system as well. Most stock airboxes are large, complex looking arrangements, designed to mute the engine's thirst for air, as well as make it easy (relatively) to change the air filter. The snorkle for these airboxes are often in the warm compartment of the engine bay, which means the engine is sucking in hot air. Not cool. A cold air intake will have a much more free flowing design, allowing air to enter the cylinders much more rapidly. Combined with a colder air charge, and a much less restricting air filter, this will generate more power. Along with a free flowing exhaust, the CAI will permit air to enter the cylinders, and escape at a much faster rate than stock, increasing horsepower.

Just remember that speed is power, the faster you can get air and fuel burnt, and the faster exhaust can escape, to be replaced with new fuel and air, the more power you will make.

Pretty simple explanation, hope it helps.

ps. Im so bored at work its ridiculous.

 

Very specific makese sence and thankkkk youuuuu. lol

Okay i understand now i have 2001 sedan stock (for now) adding the cold air intake and exhaust, will my car pass inspections (due to the noise, I live in nyc).

So with that being said. Adding those will consume more gas or make it even more economical being that air flows through the engine more freely?

I know a few people who have silencers on their exhaust. Does that deter the performance of the exhaust or imply cut down on the noise?

 

ull get better mpg with the bolts ons, if ur not flooring it all the time to hear the cool noise. also u have to realize our motors dont respond very well to bolts on (i.e. intake, exhuast). on OUR cars, theyre mostly for look and sound and barely any performance. silencers wont really cut down on performance..not that much, but then again ur not looking at much to start with.

 

HAHAHAHAHAHAHAHAAHAHAHAHAHAHAHAHAAHAHAHAHAHAHAHAHA AHAHAHAHAHAHAHAHAAHAHAHAHAHAHAHAHAAHAHAHAHAHAHAHAH AAHAHAHAHAHAHAHAHAAHAHAHAHAHAHAHAHAAHAHAHAHAHAHAHA HAAHAHAHAHAHAHAHAHAAHAHAHAHAHAHAHAHAAHAHAHAHAHAHAH AHAAHAHAHAHAHAHAHAHAAHAHAHAHAHAHAHAHAAHAHAHAHAHAHA HAHAAHAHAHAHAHAHAHAHAA


what i did in real life when i read this

 

Don't forget something ... You may gain more horsepower, usually at the top end. but you may also lose torque. So, it's a give and take situation.

Not sure what kind of style you do. Keep in mind, doing it cat-back is much more in purpose, rather than a noisy universal muffler. Oh, changing your header and intake at the same time will definitely help.

Good luck.

 

Thanks the the input, think I have it figured out.


How much for the intake and/or exhaust?

 

I say just stay stock. It's not really worth modding the d17.
I'd rather spend it on suspension and wheel + tire combo.
But if you're interested in the intake and exhaust still check out hopupracing.com.
Free shipping and great prices on most of their parts.

 

I got a K&N cai for $155 from autozone, and i did 2 1/4 piping and apexi N1muffler/tip with instal for $200.
$355 total(IMO sounds really good)