Welcome to the North American Subaru Impreza Owners Club Monday September 15, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Technical > Normally Aspirated Powertrain

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 05-17-2007, 12:08 PM   #1
angel2167882
Scooby Newbie
 
Member#: 145363
Join Date: Apr 2007
Chapter/Region: E. Canada
Location: Deux-Montagnes, QC, Canada
Vehicle:
2007 2.5i Wagon
Newport Blue Pearl

Default Short-Ram Intake on my 2007 Impreza 2.5i

So here it is, I've purchased and installed my Cosmo Racing Short-RAM intake (SRI) on my 2007 Impreza 2.5i.
http://www.cosmoracing.com/productin...d=226&pid=1498

Because Cosmo Racing is based in Montreal, Qc, I did arrange a local pickup and paid $100 CND cash. I did also requested with polished piping and with blue coupling and filter if possible, which happens to be. Really good price and service.

I choose an SRI (vs CAI) because:
-cheaper
-easier to clean the filter
-Less car resonance because it reside in a wide area (engine bay) instead of the little fender
-I'm not really doing traffic stop-and-go so hot air don't really built up under the hood
-Less risk of water, snow, slush or dirt penetration


Everything went great, about 2h install alone. The product unfortunatly don't come with instructions but someone who did already install an intake should be able to.

It took me some time to dismantle the white fender resonator but it pass without removing the wheel (and I have large 225mm tires). Just turn the steering to the max left, remove the under splash-guard, bend it and pass the resonator by the bottom. While optional, removing the resonator will free up 2 big holes from the fender that will help bring some fresh air inside the engine bay.

No need also to disconnect the battery but do NOT disconnect the MAF/MAP/TEMP, or at least do not start the car with one of thoses sensors unpluged or it will trip the CEL.

Also, plan to have an extra feet of hose to reach one of the vacuum line to the SRI piping. Got from Napa auto parts (3ft of 5/8 hose, 2 x ½ joints and clamps) for a big 6$. Big thanks to jezzy for the recommandation.

Some clamps were thighten in angle to better follow the piping curve, specially the TB end that take 130-140° curving. Fitting is pretty good, you just need to tight the "good" clamp in the "good" order. The MAF is near 2 brake lines but OEM setup is like that too.

Finally, it took me some time to figure out how to bend and attached the 2 provided bracket to stabilize the fragile and expensive MAF. It's pretty well done, it hold firmly in place and won't knock or excessively vibrate. See the details below with the pictures.


Now for performance and sound... Lots of debate around the SRI/CAI need on the EJ25, even some think you will loose some. But don't forget the 06-07 EJ25 has i-AVLS, a variable lift on 1 intake valve per cylinder, à la Honda VTEC. More infos here:
http://www.drivesubaru.com/Spring07_whatmakes.htm
http://community.webshots.com/album/384399999ynOfJe

Even this guy got near 15WHP -12TQ dyno proven, with an eBay custom built SRI:
http://forums.nasioc.com/forums/show....php?t=1156560

So for myself, my butt dyno saw immediatly a difference. For the one who think you'll loose some low-end torque, well it's totally the opposite. I have the bad habbit to start from a stop in 2nd gear (unless totally stop) and wow, no more "lag", response is clearly better, thanks to i-AVLS.

In the mid-high rev, the gain is good too, I would maybe not say loud 15HP but something like 7-8HP would sound me good, and 10HP when the i-AVLS kicks in because of the sound!

Talking about sound, it's completly crazy around 5500-6000RPM at WOT! But the beauty of it is that in normal driving, you just don't ear it. Unless you floor it (maybe under 50% throttle), it's totally sleeper, brilliant for long driving and to not disturb the nerborhood.

So here's the pics:

OEM intake in the engine bay


OEM intake on the floor (white box is the fender resonator, also called the portable toilet)


Vacuum line that need to be extended with the joint and an extra feet of hose



MAP sensor on the OEM U style fitting... it will slightly touch on the hood


Last vacuum line to connect under the piping


First bracket that hold from the suspension tower bolt to the MAF plate.


Second bracket fixed lower, screw with a spare provided bolt into body pre-holed and bracket end rest on the filter coupling, retain under the clamp


Final pics in second post below
* Registered users of the site do not see these ads.

Last edited by angel2167882; 05-17-2007 at 12:13 PM. Reason: typo
angel2167882 is offline   Reply With Quote
Old 05-17-2007, 12:09 PM   #2
angel2167882
Scooby Newbie
 
Member#: 145363
Join Date: Apr 2007
Chapter/Region: E. Canada
Location: Deux-Montagnes, QC, Canada
Vehicle:
2007 2.5i Wagon
Newport Blue Pearl

Default

Install done!





Here's a little vid also here:
http://video.google.ca/videoplay?doc...68787931799987

It's a 80km/h to 120km/h in 3nd gear, inside car and window closed. Give's a idea of performance and sound but quality is poor, sorry.

Final word, it's a must for the price!


For frenchies, you can find a french version of this thread on my local club here:
http://www.montreal-subaru-club.com/...ic.php?t=48592

Last edited by angel2167882; 05-18-2007 at 08:32 AM. Reason: Video link added
angel2167882 is offline   Reply With Quote
Old 05-17-2007, 12:23 PM   #3
blackbox1
Scooby Newbie
 
Member#: 97280
Join Date: Sep 2005
Default maybe a turbo?

looks great my friend has a 2007 2.5i and we were wondering if the turbo stuff that will fit the wrx or sti will fit his 2.5i?
blackbox1 is offline   Reply With Quote
Old 05-17-2007, 01:02 PM   #4
subiesurfer
Scooby Newbie
 
Member#: 121330
Join Date: Jul 2006
Chapter/Region: Tri-State
Vehicle:
06 impreza
SGM

Default

Quote:
Originally Posted by blackbox1 View Post
looks great my friend has a 2007 2.5i and we were wondering if the turbo stuff that will fit the wrx or sti will fit his 2.5i?
no will not work.





on the other hand, nice post very detailted, any video?
subiesurfer is offline   Reply With Quote
Old 05-17-2007, 01:27 PM   #5
angel2167882
Scooby Newbie
 
Member#: 145363
Join Date: Apr 2007
Chapter/Region: E. Canada
Location: Deux-Montagnes, QC, Canada
Vehicle:
2007 2.5i Wagon
Newport Blue Pearl

Default

Quote:
Originally Posted by subiesurfer View Post
on the other hand, nice post very detailted, any video?
Yeah, I've made a 80km/h to 120km/h in 3nd gear, inside car and window closed.

It make 3.8MB but I don't have a place to host it... any volunteer?
angel2167882 is offline   Reply With Quote
Old 05-17-2007, 02:20 PM   #6
Sir-Knight
Scooby Specialist
 
Member#: 73636
Join Date: Nov 2004
Chapter/Region: E. Canada
Location: the 'wa, ontario, canada
Vehicle:
2007 Impreza 2.5i SE
newport blue pearl

Default

youtube or google video.
Sir-Knight is offline   Reply With Quote
Old 05-17-2007, 02:32 PM   #7
doubledribble
Scooby Specialist
 
Member#: 42912
Join Date: Sep 2003
Chapter/Region: MAIC
Location: Newark, DE
Vehicle:
2003 Outback Sport
bird **** & door dings

Default

i'd remove the stock airbox mount. i left mine on when i put in the COBB cai and after a few month of driving, vibration and what not weakened the base and it broke off. luckily i was under the hood and caught it before it caused any damage.
doubledribble is offline   Reply With Quote
Old 05-17-2007, 02:51 PM   #8
angel2167882
Scooby Newbie
 
Member#: 145363
Join Date: Apr 2007
Chapter/Region: E. Canada
Location: Deux-Montagnes, QC, Canada
Vehicle:
2007 2.5i Wagon
Newport Blue Pearl

Default

Quote:
Originally Posted by doubledribble View Post
i'd remove the stock airbox mount. i left mine on when i put in the COBB cai and after a few month of driving, vibration and what not weakened the base and it broke off. luckily i was under the hood and caught it before it caused any damage.
I guess you are talking about the 2 poles that hold the "torque box"? Yeah, I tought about removing them too (specially the driver side one) but I figured out they were not disturbing anything and would be easier to put back the stock intake just in case.

But if you said they could break so easy, well I will remove at least the driver's side one. The other one kinda hold the MAP sensor throught, should I removed it too?
angel2167882 is offline   Reply With Quote
Old 05-17-2007, 03:29 PM   #9
cmiovino
Scooby Guru
 
Member#: 134005
Join Date: Dec 2006
Chapter/Region: MAIC
Location: Pittsburgh, PA
Vehicle:
2004 WRX Premium
PSM

Default

Ah, good to see someone had luck with the Cosmo. A video would be great though :P

Tell us how much of a difference you get with gas mileage!

Last edited by cmiovino; 05-17-2007 at 03:39 PM.
cmiovino is offline   Reply With Quote
Old 05-17-2007, 07:24 PM   #10
Foresternation
Scooby Newbie
 
Member#: 126341
Join Date: Sep 2006
Chapter/Region: Tri-State
Location: Long Beach, NY
Vehicle:
2007 Forester X Prem
Urban Grey Metallic

Default

My question is whats the difference between this short ram intake and the cosmo Cold air intake that goes into the fender?? Is it a loss of power issue or just a noise and safety, concerning the air being pulled from the fender?
Foresternation is offline   Reply With Quote
Old 05-17-2007, 08:57 PM   #11
zavier
Scooby Specialist
 
Member#: 141189
Join Date: Feb 2007
Chapter/Region: Tri-State
Location: Philadelphia
Vehicle:
2007 2.5i (NBP)
2014 BRZ (DGM)

Default

SRI's pull in the air in the engine bay which tends to be warmer then the outside air...the CAI sits in the fender down near the base and pulls in cooler air...that's about it
zavier is offline   Reply With Quote
Old 05-18-2007, 08:30 AM   #12
angel2167882
Scooby Newbie
 
Member#: 145363
Join Date: Apr 2007
Chapter/Region: E. Canada
Location: Deux-Montagnes, QC, Canada
Vehicle:
2007 2.5i Wagon
Newport Blue Pearl

Default

Quote:
Originally Posted by cmiovino View Post
Ah, good to see someone had luck with the Cosmo. A video would be great though :P

Tell us how much of a difference you get with gas mileage!
Here's the vid:
http://video.google.ca/videoplay?doc...68787931799987
Sorry, quality it not too good, it's comming from my digital photo cam in vid mode. Car windows are closed too to prevent wind noise into the vid... thurst me, vid sound does not render the real thing!!!

About Fuel Economy, well it's too new to tell plus, summer comming so my fuel mileage will increase anyway. And I've just switch to synthetic oil also which gonna help too.

But in theory, it should be better a little because air flow better and help burn gas more. But it's also the opposite because with the SRI, you tend more often to floor it and so, it will burn more gas
angel2167882 is offline   Reply With Quote
Old 05-21-2007, 02:24 AM   #13
Firewire
Scooby Specialist
 
Member#: 3430
Join Date: Jan 2001
Chapter/Region: VIC
Location: Port Moody, BC, Canada
Vehicle:
2007 2.5i Wagon
Garnet Red

Default

I really wish they'd supply a proper mounting bracket and the necessary hose extensions. It just seems ghetto having to bend things and buy extra parts for a product that is supposed to be ready for retail and built for our cars.
Firewire is offline   Reply With Quote
Old 05-22-2007, 09:38 AM   #14
angel2167882
Scooby Newbie
 
Member#: 145363
Join Date: Apr 2007
Chapter/Region: E. Canada
Location: Deux-Montagnes, QC, Canada
Vehicle:
2007 2.5i Wagon
Newport Blue Pearl

Default

^^^
Yeah I know but if for 100$ I have to buy some extra stuff for less than 10$, it does not bug me that much!

As for the brackets, I think that even being "generic" brackets, they hold very well when properlly installed like I've done
angel2167882 is offline   Reply With Quote
Old 05-22-2007, 10:30 AM   #15
SiFuSpEc
Top Scoob 008
 
Member#: 77299
Join Date: Dec 2004
Location: Bedford, Ohio
Vehicle:
'05 2.5RS
#78 ST, MAXIMUM ATTACK!

Default

oddly enough, intakes like this with the exact welding location can be found on ebay for ~20 bucks, and the adapter for the MAF can be found ~10, so 30 bucks shipped you can have your own COSMO racing intake..

and oddly enough people still buy the COSMO..
SiFuSpEc is offline   Reply With Quote
Old 05-22-2007, 11:34 AM   #16
tlip1119
Scooby Newbie
 
Member#: 121491
Join Date: Jul 2006
Chapter/Region: NESIC
Location: Farmington CT
Vehicle:
2006 2.5i
Silver

Default

Quote:
Originally Posted by SiFuSpEc View Post
oddly enough, intakes like this with the exact welding location can be found on ebay for ~20 bucks, and the adapter for the MAF can be found ~10, so 30 bucks shipped you can have your own COSMO racing intake..

and oddly enough people still buy the COSMO..
Any links??
tlip1119 is offline   Reply With Quote
Old 05-22-2007, 11:58 AM   #17
angel2167882
Scooby Newbie
 
Member#: 145363
Join Date: Apr 2007
Chapter/Region: E. Canada
Location: Deux-Montagnes, QC, Canada
Vehicle:
2007 2.5i Wagon
Newport Blue Pearl

Default

SiFuSpEc: oddly enough, Injen make an SRI with slightly better coupling/filter quality but without the 3nd vacuum hole for 4 times the price

Don't forget I'm in Canada and Cosmo Racing is in Canada... I'll paid 100$ CDN cash all-included with a local pickup (no shipping).

But for me getting anything on eBay cost me hard on shipping, not talking about the custom fee if sent by UPS.

For me, getting the Cosmo intake was the easiest and the cheapest way
angel2167882 is offline   Reply With Quote
Old 05-22-2007, 12:02 PM   #18
SiFuSpEc
Top Scoob 008
 
Member#: 77299
Join Date: Dec 2004
Location: Bedford, Ohio
Vehicle:
'05 2.5RS
#78 ST, MAXIMUM ATTACK!

Default

Ah, Canada, that explains it... lol

Well, i was a couple dollars off, but..

http://cgi.ebay.com/ebaymotors/95-96...QQcmdZViewItem

+

http://cgi.ebay.com/ebaymotors/93-05...10396953QQrdZ1

either of the filters will work, and it will work on most any car, hell, i have a 02 intake on my 05 and the same manifold as the 06/07..

SiFuSpEc is offline   Reply With Quote
Old 05-22-2007, 10:57 PM   #19
BoozeRS05
Scooby Specialist
 
Member#: 137797
Join Date: Jan 2007
Chapter/Region: MAIC
Location: SW Pennsyltuckey
Vehicle:
'05 LegacyGT
wagon, 5mt

Default

I would buy a K&N or HKS cone. I wouldn't use some filter that can with an $8-$50 kit. That Cosmo filter seems sketchy to me.
BoozeRS05 is offline   Reply With Quote
Old 05-22-2007, 11:08 PM   #20
StE823
Scooby Specialist
 
Member#: 78673
Join Date: Jan 2005
Chapter/Region: E. Canada
Location: Toronto
Vehicle:
2005 Impreza 2.5RS
www.shutterlit.com

Default

i heard HKS filters are crap from a review comparing a bunch of filters...
StE823 is offline   Reply With Quote
Old 05-22-2007, 11:29 PM   #21
BoozeRS05
Scooby Specialist
 
Member#: 137797
Join Date: Jan 2007
Chapter/Region: MAIC
Location: SW Pennsyltuckey
Vehicle:
'05 LegacyGT
wagon, 5mt

Default

Well same point... Don't use a crap filter.

I've always used K&N, no problems.
BoozeRS05 is offline   Reply With Quote
Old 05-23-2007, 08:37 AM   #22
angel2167882
Scooby Newbie
 
Member#: 145363
Join Date: Apr 2007
Chapter/Region: E. Canada
Location: Deux-Montagnes, QC, Canada
Vehicle:
2007 2.5i Wagon
Newport Blue Pearl

Default

I will let this filter on for the season (until dirty) and switch for a K&N for sure after.


But it's not a bad filter, I did check it throught sunlight from inside and the fabric (maybe not cotton but some sort of fabric) is pretty tight, except maybe the top-end "velocity stack" filter but the screen wires are much more near together at this end vs the screen around.

And it look washable and oilable too.
angel2167882 is offline   Reply With Quote
Old 05-23-2007, 12:35 PM   #23
Bondy007
Scooby Specialist
 
Member#: 120301
Join Date: Jul 2006
Chapter/Region: VIC
Location: Richmond
Vehicle:
2010 Honda Civic EXL
Polished Metal Metallic

Default

I run an AEM short ram intake. K&N filters are the way to go. Mine was a bit older, so the next time I 'clean' it, I'll just get a new one.

Nice video too!
Bondy007 is offline   Reply With Quote
Old 05-24-2007, 02:58 AM   #24
xkrnxjonxx
Scooby Newbie
 
Member#: 129274
Join Date: Oct 2006
Chapter/Region: NWIC
Location: Aubrun, WA
Vehicle:
2006 2.5i *RIP
Urban Grey

Default

quick question
ppl been sayin that u needa easy mod for the injen intake...
wat kinda mod is it??
xkrnxjonxx is offline   Reply With Quote
Old 09-30-2007, 11:09 PM   #25
got0azn0rice
Scooby Newbie
 
Member#: 151097
Join Date: Jun 2007
Chapter/Region: NWIC
Location: PDX
Default

Does anyone know if an 04-05 2.5rs short ram from Injen would fit an 06-07 2.5i?
got0azn0rice is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
FS: 2007 Impreza 2.5i PARTOUT..exhaust,springs & intake zohh_amaze Engine/Power/Exhaust 1 08-06-2009 10:00 PM
Just intalled weapon r short ram intake on my 05 wrx Hennessc Factory 2.0L Turbo Powertrain 3 04-17-2008 12:53 AM
Audio upgrade on my 2007 Impreza Wagon 2.5i angel2167882 Car Audio, Video & Security 12 08-23-2007 10:14 AM
Should I get a 2007 Impreza 2.5i for my next car? djkaye22 Impreza Forum 59 08-01-2007 12:25 AM
Newbie question....Can anyone help me install a short ram intake on my 2000 impreza? slp0313 Impreza Forum 0 07-21-2006 08:59 AM


All times are GMT -4. The time now is 10:16 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.