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Guest Josho

A Exhaust Control Valve allows you to control the loudness of your exhaust sound. The ECV is installed right after the catalytic converter, and adjustment of the valve is done through a cable run from the ****pit to the valve body.All you have to do is slide the lever installed in the car to get the appropriate sound.

Picture of a ECV

2000500156hi.jpg

They range from $300-$400 a piece

oh ok thanks for the information and the picture. in the option Fan magazine, i saw that their is electric controller that control this Valve, (i think is the new product) am i right ?

is that needed on the car or it is useless?

by lowing down the loudness, will this effect the power as well ?

I have one (uninstalled) .... The car came over with it on and I specifically requested it be removed during the compliance. Pretty much it's as simple as it looks, you have a little plunger device in the car, you pull it and it reduces the flow of exhaust, push it back in and it sits horizontal.

My main reason for having it removed it that I could imagine passengers playing with it and me not noticing and then ripping it up the street .... backpressure not good for turbo :)

I still have the plunger in the car for show just so people ask what it is :D

Peter, not 100 % sure what you're trying to say, but you'll find the ECV is open when horizontal, and closed when vertical. So you just can't keep it closed for a long period of time or whilst fanging it hard .... or better yet, don't have one.

The reason people get a 3" exhaust in the first place is to remove back pressure. Instead of getting ECV's people should just hang on to their stock exhausts.

There is a guy (from around Newcastle IIRC) who makes a more advanced version of these, which is electronically and vacuum operated. It can be set in various ways, so that at low speed it is more closed, resulting in a nice quiet idle when required, and then when you hit it it will open up to allow unrestricted flow. This is all configured for your vehicle, so it does its own thing. It then has an override mode which allows you to have it stay closed at a set point so that if you you are subjected to an emissions inspection, it does not snap open when they rev it.

On a high-HP car with a big exhaust this is a pretty good idea, I reckon, as it allows a compromise between being able to drive around without worrying about being defected, and having no restriction when you want the least amount possible.

I believe AutoNerd did an article on it some time ago, I think that's where I read about this one. Looked pretty trick.

EDIT: Link:

http://www.autospeed.com/A_0883/cms/article.html

Tex

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