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Exhaust control valve


Freshmaker
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hi people, what does this particular thing do?

 

does it aid in performance of the car, and if so, how much?

 

is it a customise job or a bolt on thing?

 

roughly how much for one?

 

thanks in advance.

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Roger that.

 

Exhaust valve is a valve like a throttle body flap except that it is located somewhere at your exhaust after the extractor.

 

As such, you can choose to be stealth and close th valve, resulting in a smaller exhaust output, or go all out straight thru with it fully opened.

 

usually used on front mounted engines turbo charged or very very power NA cars.

 

For the MRS, the route leading from extractor to exhaust is already very short.

 

As suchm i will think it will not be as needed on a turbo MRS as compared to like a turboed EG6

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bro now u dun need so much to get the power valve liao...As cheap as below 300 also can get...Close to 1K is probably the price a year ago...And i agree its damn loud, my fren had 1 on his LGT....deafening when high rev...

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No, the valve is meant to make it more quiet by restricting your current exhaust flow.

 

Currently, with your exhaust mod, I believe it's totally open.

 

With the valve, you're adding the ability to control the opening size, thus the size can only go smaller (more silent) and not bigger.

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Errr... I think the exhaust valve vents directly to the environment. it bypasses the cat back totally. [sweatdrop] Not the type which limits the flow through, to the end of the muffler. [sweatdrop]

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thanks mirror and turbonetics...

 

so meaning to say, if i fix on my na-car, it will only be louder, thats all?

not only louder but it will lack low end power as well.

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bro, what brands of ECV available?

 

or must customise one?

 

can the switch be on/off when the car is in motion? or can only be done when car is stationary? im referring to the manual control one not the electronically control one.

 

thanks...

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The fuction of the exhaust control valve is to increase the exhaust back pressure- too much will kill the engine, too little or no beck pressure, engine will not be able to rev up smoothly with the correct torque output.

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