Aluminum, silicone, vacuum hose bungs, and hose clamps. Any air intake can't be shelf-bought for the Impreza 2.5RS because there's a specific "resonance" in the intake, which is rectified by the fender. However, the piping between the stock airbox, (which draws air in from the fender to reduce resonance) and the manifold is both highly turbulent and hot.
My solution was simple: make straighter piping downstream of the stock airbox and MAF sensor, which conveniently also avoids the intake manifold until it goes into the intake manifold.
I've included my version (which needs to be trimmed, vacuum bung'd and clamped) and the OEM version in the photo so you can see it.
So... I'm thinking "job well done" already. I'm finishing it up this weekend.
So, I decided to post a follow-up to what I had mentioned earlier. This lovely looking intake is called a "hybrid" intake, because it utilizes bits of the OEM filter (mainly the Helmholtz resonator and OEM airbox) with custom piping beyond the OEM airbox.
Read more here:
http://forums.nasioc.com/forums/showthread.php?t=1471819
So, I'm attempting to further improve the design with less sharp angles and more easy-flowing "lazy" turns, to thus improve air speed at higher RPMs. And it just looks amazing..
I'll have it fully installed by Sunday.
Picked this up:
(inFamous : Second Son Picture)
Next up, PS4.
@Havok_ Whoa wait what?!! You bought one? How was/is it?
Again...congrats! Looking forward to your reply in the "members rides" section. Is that the premium edition with heated seats? 8 speed paddle shifter auto or 6 speed manual? I see it has a sunroof. That's usually the premium edition. I thought for sure you would have had pics in there. Would love to hear all the details and see a LOT more pics. I currently have a local dealership getting me set up for a test drive in one of these 2015 wrx in the near future.Thanks for the comments boys. I'll be honest. I wasn;t a big fan until I saw it up close. I traded in my 2013 WRX for this and I can objectively say that this improves upon every single thing of the previous gen WRX. It rides slightly stiffer but is well damped, the steering is ridiculously precise, I can say with no hint of hyperbole that it's like a go-kart.
The engine sound has been subdued quite alot though but, the turbo is more audible than ever. Sound system is sublime, and in two days I have been averaging over 26 mpg, which is HUGE compared to my previous WRX. I'll post a full review and some more pics of the car in the Cars Forum.
You lucky human bean.
Again...congrats! Looking forward to your reply in the "members rides" section. Is that the premium edition with heated seats? 8 speed paddle shifter auto or 6 speed manual? I see it has a sunroof. That's usually the premium edition. I thought for sure you would have had pics in there. Would love to hear all the details and see a LOT more pics. I currently have a local dealership getting me set up for a test drive in one of these 2015 wrx in the near future.
Don't forget you also have the sun roof that comes with the premium/limited. That is great news about the improvements over previous years. Did you get a chance to try one with the paddle shifter? Only bad part about manual is you cant get a remote starter for winter. So the 6 speed manual feels really good? Nice clean shifts? Cant wait until our dealer gets some in.It's a Limited, heated leather seats, Harman Kardon stereo, 6 speed (the only way to go) no nav though, and hmm what else, thats pretty much it.
I actually thought it looked liked strange in photos but when I saw it in person.....I was very very impressed. You will be too, trust me, it's a VAST improvement over the previous gen WRX.