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is that $825 exhaust listed the price for just the muffler section???
 

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I want full exhaust and SSQV. I had their SSQV on my previous car and I love the sound :)
 

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He means set it to recirculate and not vent to air :p
SSQV doesn't recirculate, it vents into atmosphere. And I've seen quite a few pictures of X's equipped with SSQVs. So, unless there's a specific reason to recirculate air (like with BMW 335, for example), this shouldn't make any difference.
Now, BadBoys question kind of implies that I should be recirculating. Mind explaining why? Is that because MAF sensor reading will be messed up?
 

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SSQV doesn't recirculate, it vents into atmosphere. And I've seen quite a few pictures of X's equipped with SSQVs. So, unless there's a specific reason to recirculate air (like with BMW 335, for example), this shouldn't make any difference.
Now, BadBoys question kind of implies that I should be recirculating. Mind explaining why? Is that because MAF sensor reading will be messed up?
When you vent to atmosphere you risk stalling out b/c you are disposing of metered air. The Evo X already runs pretty rich, I would not give up any of that precious oxygen, despite the fact that it recirculates prior to the MAF sensor, I still wouldn't do it.
 

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SSQV doesn't recirculate, it vents into atmosphere. And I've seen quite a few pictures of X's equipped with SSQVs. So, unless there's a specific reason to recirculate air (like with BMW 335, for example), this shouldn't make any difference.
Now, BadBoys question kind of implies that I should be recirculating. Mind explaining why? Is that because MAF sensor reading will be messed up?
The very same reason we had to recirculate it on the VIIIs and IXs is the reason it needs to be recirculated on the X: the mass air flow sensor. As air passes through the mass air flow sensor it is metered by the computer to allow a corresponding amount of fuel to pass through the injectors. By allowing the charged air that is 'waiting in line' to evacuate the system and not be recirculated, there will be a gap in the 'line' and the air fuel ratio at that gap will plummet to a point that the car will bog due to the overly-rich condition. Some cars have even been known to stall at a full stop. In the VIII & IX HKS used the EIDS system to compensate for this, for those people who just had to have a songbird living under their hood. HKS also offered an alternative in the form of a recirculation kit that was specific for the CT9A. One of the reasons you don't hear the factory blowoff valve is because of the heavy presence of factory piping and the restrictive airbox. When switching to an open element filter, even though recirculated, the sound of the blow-off valve was evident.

So, a lot of people have asked me: Will doing this fuck up my car? Potentially coming to a stop and stalling at a stoplight? Blowing a big black tuft of smoke at each shift? Destroying the catalyst material in your cat converter prematurely?

There are so many reasons NOT to do the HKS SSQV blow-off valve on an Evo. There seems to be only one reason that people do it for: the sound.

But think about how foolish you'll look when you come to a stop on your big Brembos to the sound of Tweety singing and then *STALL*. As Adam Sandler said in his stand up comedy routine: They're all going to laugh at you!
 
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