The woosh sound as u call it is either turbo spool up or the BOV goin off after u let off the gas.

Nos is an oxidizer it allows you to ad more fuel to the combustion chamber and burn it more completly = more horspower

Usualy no its no illegal to have on your car but then agian you live in cali and pretty much every thing is illegal in cali so im not sure on that one.

A single stage nos set up is usualy pretty easy to install depending on your aplication and fairly cheap bang for your buck but its not much use for normal daily driving applications.
Also it has a tendancy to cause your engine to run lean when in use so you may need a FMU or = to compisate. not 100% on this

IMO unless u drag on the weekends or have a semi serous track car dont bother with Nitrous.

can you have that turbo sound with a stock evo?

If the evo u buy is turboed then yes. but depending on what BOV u have on it or buy for it they make different sounds.
Some make a fluttering sound some make more of a whistling sound.

are there any disadvantages on getting a BOV? i did a little bit of research but i've been getting a lot of jumbled answers. I even asked a guy in school and he said something about getting a lot of dust and leaves in your engine, something about how you have to take the filter out...idk he was really vague about it.

I heard that some are illegal in california? not sure if this is true...some say its illegal but some say that its legal in all 50 states...which is it?

a evo is stock turbo so getting a bov for it is not illegal. dunt listen to the guy at ur skool cuz he dunt knoe wat hes talking bout bov only blow air out from the turbo that suckin in the air.

Cali has the strictest modification laws in the states. Most engine and suspension modifications has to be DOT approved for street use in California. Thus you have to carry around papers for every modification you have to prove it's legal.

really? u gotta carry papers for suspension works? i thought it was for only engine performance such as intake,headers,exhaust,intake manifold, and the motor to see if its not stolen o.o

where do i get it approved? at the DMV? and is nos system legal in california too xD

got to love California

At least I believe so, I may be wrong.



Most parts you receive will be DOT approved from the aftermarket manufacturer.

I'm going to say no on nitrous. But the aluminum nitrous bottles are DOT approved, so it might be possible.

Yes if u have a turbo set up you want to have a bov on your seystem. It will let the un wanted excess pressure vent off insted of backing up and possably blowing seals or damaging your turbo. Bov's dont suck air so i dont know what the guy in your school was talking about .

it also depends on what car you get too. cuz wat w/e car u got there r legal performance parts for it and there's illegal part for it also

so no disadvantages? cuz i also read that it wastes gas or someting like that...and are there a difference in BOV's? because they all sound different >_<

LOL wtf? any car u slap a turbo on waste gas

not if its a stock turbo...or that's what i've read