I was thinking there was some weird restriction on CAI's for STX. I assume this one is legal, but, didn't want to find out otherwise some day down the road if I happen to stumble into a fully prepped JCW MCS for STX - mostly prepped for DSP. Not that that would ever happen sometime in the next week or so.

 

Look here:

https://www.northamericanmotoring.co...ad.php?t=21958

 

You are correct on a weird restriction... there was a big discussion about one of CAI's (I don't remember which) but it was determined that you cannot cut a hole in the plastic wall behind the air box that leads into the vents below the windsheild wipers... the wall is not part of the intake system and cannot be modified.

Does that help?

 

Yes, thats helps. Thanks alot for that info.

I was thinking that the JCW had some sort of hole there. I guess I will find out if I happen to stumble into one next Friday.

 

Hi Craig-

I can confirm for you that my '06 JCW's intake does indeed have an oblong opening back there. There is a valve/flap that opens at 4500RPM to accept air directly from the cowl area instead of just the front air tube. The intake noise gets a bit louder when it opens, and sometimes you can feel a bit of a 'VTEC' effect, but the changes are fairly subtle. Keep in mind that I am JUST finishing my car's break-in period, so I haven't spent much time above 4500 RPM yet.

The flap is electrically activated, but apparently doesn't actually take it's cue to open from the ECU. The ECU does not even have to be reprogrammed if you were to get the JCW Intake installed by itself. I assume that means the additional wiring involved somehow picks up engine RPM from some other source.

Also, the stock filter element found inside this JCW intake is very different from your standard MCS flat paper element. It is a big, chunky, almost cylinder-shaped deal that reminds me of a cone filter.

Hope that helps, and Good Luck next weekend.
.

 

Coopernicus

Thanks for the info, thats good to know. I wonder if taking the flap off would be legal in STX? Hmm.

Craig

 

Yes, because the flap is part of the intake system...

 

Sweet! So, if I happen to ever get a Hyper Blue 06 JCW MCS, I'll take the flap off. :-)

 

Now you wouldn't be talkin' about gettin' MY little Hyper Blue 06 JCW MCS, would you?.?.?. Not a chance, friend .

I've got my OWN STX plans to make, potentially...
.

 

Something i do find interesting when they say the back wall isn't part of the intake. is the fact that the stock NON-JCW airbox has a hole connecting the air box and the back cowl section. So this means of course you cant widen what's already there. btw i run SM so really doesn't bother me, but have been thinking about Detuning my car to run in the stx and other classes.