Welcome to the North American Subaru Impreza Owners Club Tuesday April 21, 2015
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 > Factory 2.5L Turbo Powertrain (EJ Series Factory 2.5L Turbo)

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 08-29-2013, 07:57 PM   #1
Ray-Ray03
Scooby Newbie
 
Member#: 365695
Join Date: Aug 2013
Default To intake or stay with stock airbox

I am currently running Stage2 HWG with an Invidia Q300 TBE and K&N drop in filter in my 2012 WRX hatch. I have read many negative posts about the drop in. I ran a datalog from 2K to 7K RPM's. I sent the report to Cobb and they wrote me back saying how my datalog looks real strong and healthy and how the K&N drop in is either a hit or miss, in my case it is a hit. Now, the dilemma is whether or not I should keep what I have since it is running great or go with an after market intake.
Ray-Ray03 is offline   Reply With Quote
Old 08-29-2013, 07:59 PM   #2
WRX09MD
Scooby Newbie
 
Member#: 222160
Join Date: Aug 2009
Chapter/Region: MAIC
Location: Maryland
Vehicle:
2014 Audi S4
Glacier White

Default

Keep it like it is if its running strong. Stock box is good just dont over oil it.
WRX09MD is offline   Reply With Quote
Old 08-29-2013, 09:35 PM   #3
mod maniac
Scooby Specialist
 
Member#: 300551
Join Date: Nov 2011
Chapter/Region: SCIC
Location: mariposa ca.
Vehicle:
2&4 fxt & fxt sti
Fullers Garage

Default

keep it at your power level.
mod maniac is offline   Reply With Quote
Old 08-29-2013, 09:38 PM   #4
HinshawWRX
Medium Frank
Moderator
 
Member#: 140114
Join Date: Feb 2007
Chapter/Region: MAIC
Location: Common Sense, VA
Vehicle:
2014 Porsche
GT3 (Currently on Fire)

Default

Your intake is fine, any research would show you that. But we can tell you didn't do that part.
HinshawWRX is offline   Reply With Quote
Old 08-29-2013, 09:42 PM   #5
jerbull88
Scooby Newbie
 
Member#: 248089
Join Date: May 2010
Location: albany, ga
Vehicle:
2011 wrx premium
metallic grey

Default

Quote:
Originally Posted by HinshawWRX View Post
Your intake is fine, any research would show you that. But we can tell you didn't do that part.
This is what is wrong with Nasioc. This guy just wants an opinion. There is no need for a response like that. If you can't say anything nice...
jerbull88 is offline   Reply With Quote
Old 08-29-2013, 09:47 PM   #6
Unabomber
Big Ron
Moderator
 
Member#: 18062
Join Date: Apr 2002
Chapter/Region: MAIC
Location: I can save you a ton of cash
Vehicle:
on car parts so PM
me b4 j00 buy

Default

Quote:
Originally Posted by jerbull88 View Post
This is what is wrong with Nasioc. This guy just wants an opinion. There is no need for a response like that. If you can't say anything nice...
This isn't the nice forum AND there is a sticky thread at the top of this forum that speaks of this very issue which the OP failed to read...404 horrific fault not found.
Unabomber is offline   Reply With Quote
Old 08-29-2013, 09:50 PM   #7
jerbull88
Scooby Newbie
 
Member#: 248089
Join Date: May 2010
Location: albany, ga
Vehicle:
2011 wrx premium
metallic grey

Default

the sticky contains facts. he was asking for opinions.
jerbull88 is offline   Reply With Quote
Old 08-29-2013, 10:08 PM   #8
Ray-Ray03
Scooby Newbie
 
Member#: 365695
Join Date: Aug 2013
Default

Well..... This turned into something I didn't expect. I'll figure it out on my own. Thanks anyway.
Ray-Ray03 is offline   Reply With Quote
Old 08-29-2013, 11:04 PM   #9
Chrisf4i
Scooby Newbie
 
Member#: 330313
Join Date: Aug 2012
Chapter/Region: Tri-State
Location: Lehigh Valley, PA
Vehicle:
2012 WRX sold
WRB

Default

I love the Cobb intake. Makes the car sound great.
Chrisf4i is offline   Reply With Quote
Old 08-29-2013, 11:09 PM   #10
JonnyV2889
Scooby Specialist
 
Member#: 197384
Join Date: Dec 2008
Chapter/Region: NESIC
Location: MWV NH
Vehicle:
2006 WRX Ltd
OBP

Default

Quote:
Originally Posted by Chrisf4i View Post
I love the Cobb intake. Makes the car sound great.
That's about all they're good for...with stock turbos
JonnyV2889 is offline   Reply With Quote
Old 08-30-2013, 12:43 PM   #11
northman
Scooby Newbie
 
Member#: 163631
Join Date: Nov 2007
Chapter/Region: NWIC
Location: Seattle
Vehicle:
07 Forester XT
Dom 1.5XT-R

Default

Quote:
Originally Posted by JonnyV2889 View Post
That's about all they're good for...with stock turbos
unless you want 15 whp or so with better spool, then yeah.
northman is online now   Reply With Quote
Old 08-30-2013, 12:30 AM   #12
spintheground
Scooby Specialist
 
Member#: 239638
Join Date: Feb 2010
Chapter/Region: MAIC
Location: VA Beach
Vehicle:
2007 WRX TR UGM
02 MR2 EGM

Default

The stock air box is the best engineered part of the entire intake system.
spintheground is offline   Reply With Quote
Old 08-30-2013, 08:27 AM   #13
Wrexflex
Scooby Newbie
 
Member#: 326301
Join Date: Jul 2012
Location: Cincy,OH
Vehicle:
2012 WRX LR - Sold
2015 Forester Premium CBS

Default

I had the Cobb intake - sounds amazing, but I switched to the AEM CAI for some lower intake temps. Not quite as loud as the Cobb, but still sounds good. If you get a protune there will be some sort of gains with an intake, how much? Not sure. But it's something if that makes you feel any better that it's not a complete waste.
Wrexflex is offline   Reply With Quote
Old 09-04-2013, 12:12 AM   #14
dj_quik
Scooby Newbie
 
Member#: 358424
Join Date: Jun 2013
Chapter/Region: W. Canada
Location: canada
Vehicle:
2011 STi
white

Default

Quote:
Originally Posted by Wrexflex View Post
I had the Cobb intake - sounds amazing, but I switched to the AEM CAI for some lower intake temps. Not quite as loud as the Cobb, but still sounds good. If you get a protune there will be some sort of gains with an intake, how much? Not sure. But it's something if that makes you feel any better that it's not a complete waste.

its not a waste. i got protuned today with an aem cai and gained 40 whp from baseline running the cobb stage 1+ aem map. 221.2 whp vs 261.1 whp. take it for what its worth but there are definitely gains when tuned properly.
dj_quik is offline   Reply With Quote
Old 09-04-2013, 03:36 AM   #15
yakmastermax
Scooby Newbie
 
Member#: 352649
Join Date: Apr 2013
Chapter/Region: RMIC
Location: Boulder CO
Vehicle:
2006 Subaru
SGM

Default

Wow/

What's the take on FMIC setup that dictate SRI?
yakmastermax is offline   Reply With Quote
Old 09-06-2013, 05:51 PM   #16
Eyedeas
Scooby Newbie
 
Member#: 359202
Join Date: Jun 2013
Location: Oklahoma
Vehicle:
2013 E85 WRX
447whp 403wtq

Default

Quote:
Originally Posted by dj_quik View Post
its not a waste. i got protuned today with an aem cai and gained 40 whp from baseline running the cobb stage 1+ aem map. 221.2 whp vs 261.1 whp. take it for what its worth but there are definitely gains when tuned properly.
That's from the better tune. Not the intake.
Eyedeas is offline   Reply With Quote
Old 09-06-2013, 06:42 PM   #17
Andrewxxcarlson
Scooby Specialist
 
Member#: 316415
Join Date: Apr 2012
Location: Elk Grove, CA
Vehicle:
2006 WRX
WRB

Default

Quote:
Originally Posted by Eyedeas View Post

That's from the better tune. Not the intake.
^^^ ding
Andrewxxcarlson is offline   Reply With Quote
Old 09-08-2013, 02:42 AM   #18
dj_quik
Scooby Newbie
 
Member#: 358424
Join Date: Jun 2013
Chapter/Region: W. Canada
Location: canada
Vehicle:
2011 STi
white

Default

Quote:
Originally Posted by Eyedeas View Post
That's from the better tune. Not the intake.
i agree that most of the gains were from the better tune. the tuner said that stock engines with the stock intakes typically make 240-250 whp after the protune and that stock engines with some form of aftermarket intake typically make 250-265 whp. Again, take it for whats it worth as I have no dyno charts to prove it but I believe there is more to be gained than 5 whp. 10-15 whp on a $200 part is not bad as far as gains are concerned.
dj_quik is offline   Reply With Quote
Old 08-30-2013, 09:22 AM   #19
JonnyV2889
Scooby Specialist
 
Member#: 197384
Join Date: Dec 2008
Chapter/Region: NESIC
Location: MWV NH
Vehicle:
2006 WRX Ltd
OBP

Default

Quote:
Originally Posted by Wrexflex View Post
I had the Cobb intake - sounds amazing, but I switched to the AEM CAI for some lower intake temps. Not quite as loud as the Cobb, but still sounds good. If you get a protune there will be some sort of gains with an intake, how much? Not sure. But it's something if that makes you feel any better that it's not a complete waste.
You should get a pro tune for an intake anyway so the maf scaling is correct.
JonnyV2889 is offline   Reply With Quote
Old 08-30-2013, 09:40 AM   #20
Wrexflex
Scooby Newbie
 
Member#: 326301
Join Date: Jul 2012
Location: Cincy,OH
Vehicle:
2012 WRX LR - Sold
2015 Forester Premium CBS

Default

Really JonnyV????
Saying a protune will probably see more gains versus his OTS stage 2 map... I was assuming he knew he had to switch from his stock intake map to Cobb SF map.
Wrexflex is offline   Reply With Quote
Old 08-30-2013, 12:28 PM   #21
JonnyV2889
Scooby Specialist
 
Member#: 197384
Join Date: Dec 2008
Chapter/Region: NESIC
Location: MWV NH
Vehicle:
2006 WRX Ltd
OBP

Default

Quote:
Originally Posted by Wrexflex View Post
Really JonnyV????
Saying a protune will probably see more gains versus his OTS stage 2 map... I was assuming he knew he had to switch from his stock intake map to Cobb SF map.
OTS maps are a safe average. Just like his k&n drop in, it may not perfect, it's hit or miss.
JonnyV2889 is offline   Reply With Quote
Old 08-30-2013, 12:39 PM   #22
northman
Scooby Newbie
 
Member#: 163631
Join Date: Nov 2007
Chapter/Region: NWIC
Location: Seattle
Vehicle:
07 Forester XT
Dom 1.5XT-R

Default

"the stock intake is great" is, IMO, one of the biggest wive's tales on here. With a VF on my 07, switching to an AEM CAI gave noticeable gains. Car spooled more readily, making more torque everywhere. The tuner stated that the later model intakes are even more restrictive, meaning there are more gains to be had.

Tuner also was emphatic that intakes must be tuned for, so either get protuned, or use a map specifically made for the particular intake you choose.

And don't cry about how you should only run a CAI if you live in a desert for fear of hydrolocking, if you don't drive through foot-deep puddles you will be fine. Course it never rains where I live, in Seattle.
northman is online now   Reply With Quote
Old 08-31-2013, 11:56 PM   #23
HinshawWRX
Medium Frank
Moderator
 
Member#: 140114
Join Date: Feb 2007
Chapter/Region: MAIC
Location: Common Sense, VA
Vehicle:
2014 Porsche
GT3 (Currently on Fire)

Default

Quote:
Originally Posted by northman View Post
"the stock intake is great" is, IMO, one of the biggest wive's tales on here. With a VF on my 07, switching to an AEM CAI gave noticeable gains. Car spooled more readily, making more torque everywhere. The tuner stated that the later model intakes are even more restrictive, meaning there are more gains to be had.

Tuner also was emphatic that intakes must be tuned for, so either get protuned, or use a map specifically made for the particular intake you choose.

And don't cry about how you should only run a CAI if you live in a desert for fear of hydrolocking, if you don't drive through foot-deep puddles you will be fine. Course it never rains where I live, in Seattle.
Good thing you know more then the industry's leading tuners right? Or the countless high HP Subaru's using the stock intake. But luckily your 07 loved the CAI and it's nearly unnoticeable gains. That butt dyno is strong!

But honestly, you can get power from an intake. But the POWER to COST ratio is so backwards it's not a GOOD mod. Now the intake fan boys can run along and talk about how great their intake is.
HinshawWRX is offline   Reply With Quote
Old 09-01-2013, 04:50 AM   #24
northman
Scooby Newbie
 
Member#: 163631
Join Date: Nov 2007
Chapter/Region: NWIC
Location: Seattle
Vehicle:
07 Forester XT
Dom 1.5XT-R

Default

Quote:
Originally Posted by HinshawWRX View Post
Good thing you know more then the industry's leading tuners right? Or the countless high HP Subaru's using the stock intake. But luckily your 07 loved the CAI and it's nearly unnoticeable gains. That butt dyno is strong!

But honestly, you can get power from an intake. But the POWER to COST ratio is so backwards it's not a GOOD mod. Now the intake fan boys can run along and talk about how great their intake is.
One of the industries leading tuners tuned my car. If you are already getting tuned anyway, the additional cost of an intake is one of the cheapest mods out there, not sure why everyone harps on cost.

For me, the intake made more difference than a $700 catback. That was proved (to me) with back to back dyno runs. How come anytime someone swaps a catback you never see posts about the crappy "POWER to COST ratio"?

My gains were definitely noticeable. Other "industry leading tuners" seem to think a good cold air intake is worth about 15 whp. In my opinion, a CAI makes sense as the 2nd mod, right after (or in conjunction with) a downpipe.
northman is online now   Reply With Quote
Old 09-01-2013, 08:34 PM   #25
Uncle Scotty
Scooby Guru
 
Member#: 16200
Join Date: Mar 2002
Vehicle:
OK buy Nates beans
westcoastroasting.com

Default

Quote:
Originally Posted by northman View Post
One of the industries leading tuners tuned my car. If you are already getting tuned anyway, the additional cost of an intake is one of the cheapest mods out there, not sure why everyone harps on cost.

For me, the intake made more difference than a $700 catback. That was proved (to me) with back to back dyno runs. How come anytime someone swaps a catback you never see posts about the crappy "POWER to COST ratio"?

My gains were definitely noticeable. Other "industry leading tuners" seem to think a good cold air intake is worth about 15 whp. In my opinion, a CAI makes sense as the 2nd mod, right after (or in conjunction with) a downpipe.

only a TRUE idiot would pay $700 for a cat back
Uncle Scotty 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


All times are GMT -4. The time now is 02:12 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2015 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.