Welcome to the North American Subaru Impreza Owners Club Sunday September 21, 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 02-20-2008, 09:16 PM   #1
dalehatestheriaa
Scooby Newbie
 
Member#: 170616
Join Date: Feb 2008
Chapter/Region: Tri-State
Location: Albany NY
Vehicle:
1998 MiatA!
BLACK

Default 06 subaru impreza 2.5i

So I have been looking for a cold air intake, and some exhaust for my car.

I haven seen a ton of stuff for NA impreza just about up to 05 and then it looks like they all fell of the face of the earth. Did they stop making stuff after they switched from the rs to the 2.5i?

like i said im new to this.......

i was looking a a injen CAI at boxer4racing.com and also there exhaust, but i have seen others on different sights..

my question is what else will fit on the 06?
and any recomindations about a good CAI? or a exhaust, im not sure if im getting headers or not, or if im just going to go with a high flow cat, then a cat back system.


thanks
* Registered users of the site do not see these ads.
dalehatestheriaa is offline   Reply With Quote
Old 02-20-2008, 09:44 PM   #2
Pohenegamook
Scooby Specialist
 
Member#: 134262
Join Date: Dec 2006
Chapter/Region: International
Location: Apex of Derpidity
Vehicle:
9 조 ☼
Protective Buttress Face

Default

Pohenegamook is offline   Reply With Quote
Old 02-20-2008, 09:45 PM   #3
inkpreza
Scooby Specialist
 
Member#: 142064
Join Date: Feb 2007
Chapter/Region: AKIC
Location: Palmer,AK
Vehicle:
2001 Dodge Ram Sport
1973 MGB

Default

i recommend williaty's hybrid set-up. i have used a cosmo SRI and a cosmo CAI and experienced problems with both the intakes and fuction of the car. see the cosmo thread below and it will have some good info as to why.
inkpreza is offline   Reply With Quote
Old 02-20-2008, 09:47 PM   #4
zacks62fairlane
Scooby Newbie
 
Member#: 170198
Join Date: Jan 2008
Chapter/Region: NWIC
Location: Tacoma, Washington
Vehicle:
2006 SG9 Foz
1965 Satin Black Nova

Default

i have the Injen CAI on both my Forester and my Impreza, i like it. i do not like short ram intakes cause they cause you to lose low end torque.

im also in the process of putting a full exhaust on my forester, headers and all. for that you have to go with a 2.5rs exhaust. any year 93-05 will work, but it has to be full, headers to muffler, if you just want it to be a bolt on thing with no welding or cutting.
zacks62fairlane is offline   Reply With Quote
Old 02-20-2008, 10:27 PM   #5
dalehatestheriaa
Scooby Newbie
 
Member#: 170616
Join Date: Feb 2008
Chapter/Region: Tri-State
Location: Albany NY
Vehicle:
1998 MiatA!
BLACK

Default

thanks, a high flow cat wont bolt onto the stock exhaust manafold?
dalehatestheriaa is offline   Reply With Quote
Old 02-20-2008, 10:30 PM   #6
dalehatestheriaa
Scooby Newbie
 
Member#: 170616
Join Date: Feb 2008
Chapter/Region: Tri-State
Location: Albany NY
Vehicle:
1998 MiatA!
BLACK

Default

Quote:
Originally Posted by zacks62fairlane View Post
i have the Injen CAI on both my Forester and my Impreza, i like it. i do not like short ram intakes cause they cause you to lose low end torque.
i agree, i am looking more for cold air. i was looking at the injen cai more because i like that idea that it gets rid of the air box. i know you can do this with any aftermarket intake but injen makes it easy.

i was also looking at weapor r secret weapon? is it all what they make it to be?
dalehatestheriaa is offline   Reply With Quote
Old 02-20-2008, 10:45 PM   #7
RaceFaceXC
NASIOC Supporter
 
Member#: 165749
Join Date: Dec 2007
Chapter/Region: South East
Location: stupid Florida
Vehicle:
2007 No YELLING
on the bus!

Default

Quote:
Originally Posted by dalehatestheriaa View Post
thanks, a high flow cat wont bolt onto the stock exhaust manafold?
None that I know of.. im 99% sure that the only HF cats are to fit 05-previous and the OBX/COBB customs made to fit thier EL headers.

Quote:
Originally Posted by dalehatestheriaa View Post
i agree, i am looking more for cold air. i was looking at the injen cai more because i like that idea that it gets rid of the air box. i know you can do this with any aftermarket intake but injen makes it easy.

i was also looking at weapor r secret weapon? is it all what they make it to be?


I have the WeaponR Secret Weapon. Its descent. Dont expect anymore gains than the rest of the available SRI's out there. Your butt dyno might notice slight Mid/high end gains without a MAF rescale/fuelmap tune. If you tune it you should get a little more (this goes for any aftermarket intake, SRI.CAI included)

The Secret Weapon is quite mean sounding above 4000rpm so be ready for some pretty loud noise @ WOT. If you plan on doing a SRI or CAI and deleting your snorkus, read Williaty's thread about the hybrid intake. That seemingly stupid snorkus actually had a good, important function besides quieting your intake. without it you will get poor MAF function below 200rpm. If you do a couple searches in the forum you will find tons and tons of info about SRI's and CAI's. Dyno graphs and all. good luck.
RaceFaceXC is online now   Reply With Quote
Old 02-20-2008, 10:50 PM   #8
zacks62fairlane
Scooby Newbie
 
Member#: 170198
Join Date: Jan 2008
Chapter/Region: NWIC
Location: Tacoma, Washington
Vehicle:
2006 SG9 Foz
1965 Satin Black Nova

Default

Quote:
Originally Posted by RaceFaceXC View Post
None that I know of.. im 99% sure that the only HF cats are to fit 05-previous and the OBX/COBB customs made to fit thier EL headers.
i dont know about the cobb, but the OBX hfc is NOT a cat, its a resenator... this was brought to my attention yesterday.
zacks62fairlane is offline   Reply With Quote
Old 02-20-2008, 10:54 PM   #9
RaceFaceXC
NASIOC Supporter
 
Member#: 165749
Join Date: Dec 2007
Chapter/Region: South East
Location: stupid Florida
Vehicle:
2007 No YELLING
on the bus!

Default

see, you learn something everyday. thats what i learned today. I want to say the OBX is a copy of the Cobb so it would make sense that the Cobb is a res too. im going from memory and what i thought i read/heard so i could be wrong.
RaceFaceXC is online now   Reply With Quote
Old 02-20-2008, 10:54 PM   #10
cmiovino
Scooby Guru
 
Member#: 134005
Join Date: Dec 2006
Chapter/Region: MAIC
Location: Pittsburgh, PA
Vehicle:
2004 WRX Premium
PSM

Default

Not to hijack or kill your thread, but what have you done suspension-wise? Anything?

I agree an exhaust is one of the most enjoyable mods, but a rear sway and endlinks are a great addition too. Just remember to balance everything out between power, stopping, and cornering performance.

I just don't think spending $200 on a CAI and another $200 (at least) on an exhaust when you can have a rear sway for like $50.

Between an intake and exhaust, I think you'll enjoy the exhaust more. Consider used items too, much cheaper.

Good luck.
cmiovino is offline   Reply With Quote
Old 02-20-2008, 11:08 PM   #11
dalehatestheriaa
Scooby Newbie
 
Member#: 170616
Join Date: Feb 2008
Chapter/Region: Tri-State
Location: Albany NY
Vehicle:
1998 MiatA!
BLACK

Default

i got the car a couple weeks ago... I love the look of the impreza and i can't afford a wrx. the insurance would kill me and i ran into a bind with my old car which made me buy now insted of saving. I know that I'm not going to get much out of NA car im not that ignorant im just looking to do some bolt on stuff to maybe get some more power out of it but im dieing for that low rumble that the boxer engine is known for.

I ordered tenabee lowering springs, they should be here in a week or less, and im going to get those on asap. and i have been looking into susepnsion i just wasnt sure what to go with first, dont have that much for funds......

i was thinking of just doing a cai, and a full exhaust, but i want to get idea's from what people have already done so i have been searching around on forums for a week or so before i settle on anything but im looking at the injen cai, borla headers, and strongmung high flow cat + strongmung cat back...
dalehatestheriaa is offline   Reply With Quote
Old 02-20-2008, 11:26 PM   #12
zacks62fairlane
Scooby Newbie
 
Member#: 170198
Join Date: Jan 2008
Chapter/Region: NWIC
Location: Tacoma, Washington
Vehicle:
2006 SG9 Foz
1965 Satin Black Nova

Default

Quote:
Originally Posted by dalehatestheriaa View Post
im looking at the injen cai, borla headers, and strongmung high flow cat + strongmung cat back...
this is my exact setup on my 2.5i. i would do exactly that and then focus on the suspention... get some used stock sti suspention and swap that... give yourself a respectable N/A car with nice handling. you will be out turning any honda damn near and pulling out of those corners that much quicker...

good luck bro
zacks62fairlane is offline   Reply With Quote
Old 02-20-2008, 11:35 PM   #13
dalehatestheriaa
Scooby Newbie
 
Member#: 170616
Join Date: Feb 2008
Chapter/Region: Tri-State
Location: Albany NY
Vehicle:
1998 MiatA!
BLACK

Default

Quote:
Originally Posted by zacks62fairlane View Post
this is my exact setup on my 2.5i. i would do exactly that and then focus on the suspention... get some used stock sti suspention and swap that... give yourself a respectable N/A car with nice handling. you will be out turning any honda damn near and pulling out of those corners that much quicker...

good luck bro

Thanks! glad to get feedback on the setup. like i said i just got the car so it will take a bit to fund the exhaust but any recomindations on shopping?
i got most of it boxer4racing.com they seem to be the only place i can find that has this sort of stuff for the 2.5i, or even the rs. most stuff is for the wrx. just looking for more places.... besides ebay? i look there to
dalehatestheriaa is offline   Reply With Quote
Old 02-20-2008, 11:40 PM   #14
zacks62fairlane
Scooby Newbie
 
Member#: 170198
Join Date: Jan 2008
Chapter/Region: NWIC
Location: Tacoma, Washington
Vehicle:
2006 SG9 Foz
1965 Satin Black Nova

Default

Quote:
Originally Posted by dalehatestheriaa View Post
any recomindations on shopping?
ebay for the headers, i got all my exhaust from guys on here and on rs25.com... you get the borlas and any rs exhaust and just swap all the 2.5i shtuff out... high flow cat is a must!

actually look up subikid for headers... hes on here and i just got some headers from him today. i wont say price or how may he has, but i was lead to believe that he has more than one set left.
zacks62fairlane is offline   Reply With Quote
Old 02-20-2008, 11:43 PM   #15
zacks62fairlane
Scooby Newbie
 
Member#: 170198
Join Date: Jan 2008
Chapter/Region: NWIC
Location: Tacoma, Washington
Vehicle:
2006 SG9 Foz
1965 Satin Black Nova

Default

you can save huge money buying good, use parts... just ask for pics. if they cant produce pics, you cant produce money
zacks62fairlane is offline   Reply With Quote
Old 02-21-2008, 12:03 AM   #16
zacks62fairlane
Scooby Newbie
 
Member#: 170198
Join Date: Jan 2008
Chapter/Region: NWIC
Location: Tacoma, Washington
Vehicle:
2006 SG9 Foz
1965 Satin Black Nova

Default

check this link out btw, good N/A info

http://forums.nasioc.com/forums/show....php?t=1022154
zacks62fairlane is offline   Reply With Quote
Old 02-21-2008, 12:05 AM   #17
dalehatestheriaa
Scooby Newbie
 
Member#: 170616
Join Date: Feb 2008
Chapter/Region: Tri-State
Location: Albany NY
Vehicle:
1998 MiatA!
BLACK

Default

Quote:
Originally Posted by zacks62fairlane View Post
ebay for the headers, i got all my exhaust from guys on here and on rs25.com... you get the borlas and any rs exhaust and just swap all the 2.5i shtuff out... high flow cat is a must!

actually look up subikid for headers... hes on here and i just got some headers from him today. i wont say price or how may he has, but i was lead to believe that he has more than one set left.
Thanks for the tip i just PM hopfully he has a set left.
dalehatestheriaa is offline   Reply With Quote
Old 02-21-2008, 12:10 AM   #18
dalehatestheriaa
Scooby Newbie
 
Member#: 170616
Join Date: Feb 2008
Chapter/Region: Tri-State
Location: Albany NY
Vehicle:
1998 MiatA!
BLACK

Default

Quote:
Originally Posted by zacks62fairlane View Post
check this link out btw, good N/A info

http://forums.nasioc.com/forums/show....php?t=1022154
that is the best thread I have came across yet. thanks a bunch that is very helpful
dalehatestheriaa is offline   Reply With Quote
Old 02-21-2008, 12:12 AM   #19
zacks62fairlane
Scooby Newbie
 
Member#: 170198
Join Date: Jan 2008
Chapter/Region: NWIC
Location: Tacoma, Washington
Vehicle:
2006 SG9 Foz
1965 Satin Black Nova

Default

yeah, he was very easy to deal with, nice guy.
zacks62fairlane is offline   Reply With Quote
Old 02-21-2008, 12:47 AM   #20
williaty
Scooby Guru
 
Member#: 71092
Join Date: Sep 2004
Chapter/Region: MWSOC
Location: Delaware County, Ohio
Vehicle:
2005 2.5RS Wagon
Regal Blue Pearl

Default

Quote:
Originally Posted by zacks62fairlane View Post
i have the Injen CAI on both my Forester and my Impreza, i like it. i do not like short ram intakes cause they cause you to lose low end torque.
This is either a misleading or outright false statement depending on how you want to look at it.

Other than a slight difference in IAT, a CAI and SRI are no different. Both flow as much air as the stock system up until about 3500RPM and then considerably more air than stock above that. Both are god-forsaken noisy (like turbo guys with a straight pipe will be in awe of the noise level). Both, if used on a MAF-based car, will play silly buggers with the AFR if you don't take steps to deal with it.

They're basically the same thing.
williaty is offline   Reply With Quote
Old 02-21-2008, 12:56 AM   #21
dalehatestheriaa
Scooby Newbie
 
Member#: 170616
Join Date: Feb 2008
Chapter/Region: Tri-State
Location: Albany NY
Vehicle:
1998 MiatA!
BLACK

Default

Quote:
Originally Posted by williaty View Post
This is either a misleading or outright false statement depending on how you want to look at it.

Other than a slight difference in IAT, a CAI and SRI are no different. Both flow as much air as the stock system up until about 3500RPM and then considerably more air than stock above that. Both are god-forsaken noisy (like turbo guys with a straight pipe will be in awe of the noise level). Both, if used on a MAF-based car, will play silly buggers with the AFR if you don't take steps to deal with it.

They're basically the same thing.
possibly with less abbreviations? lol

Helpful and thank you. i have heard that short ram you tend to get more power low rpm and cold air you get more power high rpm. i have heard that this is true, not true, and kinda true. but that cold air you tend to get the best of bolth worlds im not sure who to beleive?
dalehatestheriaa is offline   Reply With Quote
Old 02-21-2008, 12:57 AM   #22
zacks62fairlane
Scooby Newbie
 
Member#: 170198
Join Date: Jan 2008
Chapter/Region: NWIC
Location: Tacoma, Washington
Vehicle:
2006 SG9 Foz
1965 Satin Black Nova

Default

well if you look at it as someones own experience as well as the statements of other members who have made comments on them... i dont believe it to be misleading or outright false.

a cold air intake smothes out your airflow, resulting in less turbulant air. also, with a cold air intake, you are subjecting, if you will, your engine to cooler, denser air that increases low end power.

but i am a n00b afterall
zacks62fairlane is offline   Reply With Quote
Old 02-21-2008, 12:59 AM   #23
dalehatestheriaa
Scooby Newbie
 
Member#: 170616
Join Date: Feb 2008
Chapter/Region: Tri-State
Location: Albany NY
Vehicle:
1998 MiatA!
BLACK

Default

That is what i heard too. and that is why i am going with the cold air intake rather then anything else
dalehatestheriaa is offline   Reply With Quote
Old 02-21-2008, 01:09 AM   #24
williaty
Scooby Guru
 
Member#: 71092
Join Date: Sep 2004
Chapter/Region: MWSOC
Location: Delaware County, Ohio
Vehicle:
2005 2.5RS Wagon
Regal Blue Pearl

Default

Quote:
Originally Posted by zacks62fairlane View Post
well if you look at it as someones own experience as well as the statements of other members who have made comments on them... i dont believe it to be misleading or outright false.

a cold air intake smothes out your airflow, resulting in less turbulant air. also, with a cold air intake, you are subjecting, if you will, your engine to cooler, denser air that increases low end power.

but i am a n00b afterall
1) I don't trust people to be able to accurately tell what has or hasn't change by their butt dyno. For instance, there's no evidence either version actually loses any low-end grunt yet many people say that they do. It's very likely that this mistaken feeling is caused by the difference between the stock power delivery (which is pretty smooth and even) and the modified power delivery (which is like stock until the point where it explodes upwards). If people don't have data or don't do perception-based testing for a living, don't trust them.

2) While it would, in theory, be possible to design a CAI that does actually have less turbulence than a SRI, it doesn't happen in practice (largely due to the fact you'd have to cut the fender out and have a few feet of pipe sticking out the side of your car). With the intakes that actually end up on real Imprezas, CAI and SRI have equal problems with turbulence.

3) While cooler air is denser and should allow more power to be made (hence the desire for intercoolers), the temperature difference between the fender well and the engine bay is just too small to matter once the car is moving. I take air in from the stock location. When driving, my IATs settle to about 3F above outside air. This is a trivial difference. And, btw, if the air were colder enough to matter, it wouldn't just increase low-end (whoever said that is a berk), it would increase everything.
williaty is offline   Reply With Quote
Old 02-21-2008, 01:10 AM   #25
zacks62fairlane
Scooby Newbie
 
Member#: 170198
Join Date: Jan 2008
Chapter/Region: NWIC
Location: Tacoma, Washington
Vehicle:
2006 SG9 Foz
1965 Satin Black Nova

Default

yeah man, its a persnal prefrence thing... i have used the injen, which can be used as either a short ram intake or a cold air intake.
zacks62fairlane 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
WTB: 06-07 subaru impreza 2.5i parts subimperza NWIC Private Classifieds 1 12-17-2009 08:11 PM
FS: 06/07 Impreza 2.5i Weapon R intake Ranyart NESIC Private Classifieds 13 09-15-2008 05:36 PM
WTB: 06-07 subaru impreza 2.5i stock exhaust manifold Vizzionz Private 'Wanted' Classifieds 8 07-27-2008 02:14 AM
WTT: 06-07 Impreza 2.5i Hood for WRX/WRX STi Hood WeakSauce2.5i SCIC Private Classifieds 50 01-18-2008 07:54 PM
06-07 Subaru Impreza 2.5i stock molded mudflaps nyx Accessories & Misc 2 01-02-2008 09:05 PM


All times are GMT -4. The time now is 06:52 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.