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Old 01-11-2013, 05:46 PM   #1
UVRUGBY
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Member#: 343303
Join Date: Jan 2013
Chapter/Region: RMIC
Location: Utah
Vehicle:
2008 Impreza 2.5
Silver

Default New to Subie 08 impreza hatch 2.5I

First off, What up all. Been lurking the forum for about 4 months now.
This is just going to pass over some questions that I have that am still fuzzy on with the 2008 2.5I. im new to subies in general, but the mod world I am not. Previously owned 1997 honda accord, 2003 toyota tacoma, 2010 Malibu and a 2008 Eclipse, 2008 Hyosung GT650, and currently own a 1990 toyota pickup for my rocky fun 5 of the 6 modded in their own ways.

So to the subie and the questions, I have researched this vehicle and new I was getting into a non powerful ride with very little power upgrade options, fine with me. I am building a 350 chevy for powa. This is a DD for and the suspension area of this vehicle has me I want the performance handling out of this vehicle and keep reading that just dropping springs in and dropping the CG is terrible for performance handling, but never see where to fully start with the suspension. I look at suspension parts and im like a fat kid in a candy store, don't know where to start with a subaru because of everything that can be changed via the suspension. We didn't have that much suspension mods for the other vehicles I have owned. So what is the subie people say the best place to start is? I live in utah, we get everything and we have lots of twisties. that are amazingly fun.

I am going to do exhaust work on the car just to get ride of the pea pipe sticking out the back, and to get the wrx look, looking to do just a OEM wrx exhaust swap, but am lost on what years of the wrx will fit on the 2008 hatchback?

That should resolve my confusion.
Thanks in advance





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Last edited by UVRUGBY; 01-11-2013 at 07:22 PM.
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Old 01-11-2013, 05:55 PM   #2
Trustkevin13
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2008 Subaru WRX
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derp derp. uhhh, for the exhaust i guess it'll be 2008-2010 for sure. (your pics dont work) or you can do the quad tips too like i did and cut out my sport diffuser. Just know that only the HATCH exhaust will work, the sedan exhaust have a split and different hangers.



I'd do the sway bars first and a front strut bar too. still not good enough? coilovers? or springs if they are a bit out of reach due to price.
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Old 01-11-2013, 06:05 PM   #3
KartRacer3
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2011 2.5i prem pckg
SSM

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Welcome! All 08+ impreza's have no rear sway bar so thats a good place to start. You can use any 08+ wrx or Sti rear sway bar for a cheap upgrade-you can find some of them in the classifieds for cheap. As for the front sway bar, our cars are different than the wrx/sti so you either can leave it stock or upgrade to rallitek's/whiteline's swaybars. Theirs currently a front and rear swaybar combo from rallitek for sale in the classifieds right now! If you plan on swapping out your suspension with coilovers or a spring/strut combo then you have a lot of options.
All 08+ wrx suspension mods (minus the front sway bar) will fit our cars. Coilovers offer a quick and easy installation but may cost more for the better quality ones. A spring/strut combo may be cheaper but sometimes can have the same quality as that of upper end coilovers minus a few adjustable options such as height adjustability. Personally I have Koni Inserts for the front struts and koni replacement shocks paired with RCE yellow springs and I love it. I have dampening adjustablity, so when Im just cruising around town I can set them to full soft but when I head to the mountain twisty's I can set them to full stiff and they feel just as stiff or pretty close to my bro's kw v3's on full stiff.

As for exhaust, we are pretty limited. To retain as much power or make as much as you can (its really not a lot), it has been preached that the optimum exhaust sizing is 2.25-2.5". You can easily goto a custom exhaust place and have them fab you something up for fairly cheap but make sure to check your local state laws if you want to stay legal. For simple cat-back exhausts you can purchase a few different styles but the only fitment that you will find anything under will be for 08-10 wrx fitment (single exit exhaust on passenger rear side). If you click on this link you can find a few of them here but be sure to look at the hatchback fitment: http://www.rallysportdirect.com/2008...t-Back-Exhaust

A few good places to look at these products/prices are listed below:
1) Rallysportdirect.com-has nearly every brand you can think of with competitive prices
2) http://shop.bostonmotorsports.com/ : These guys are also a vendor here on nasioc, I love their customer service and have the best prices in my opinion!

By the way you do not need a front strut bar for any 08+ model as the strut towers are much stronger than previous generations.
If I were you I would go roughly in this order:
Rear sway bar>Exhaust>New tires>Coils/Strut&spring combo

Also if you look on the 08-10 2.5i thread in the impreza section their are a lot of other good examples of what people do suspension wise. I hope this helps you somewhat and if you have any more questions feel free to pm me or even just post here!

Last edited by KartRacer3; 01-11-2013 at 06:13 PM.
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Old 01-11-2013, 07:23 PM   #4
UVRUGBY
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Join Date: Jan 2013
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Location: Utah
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Silver

Default

Kevin, images fixed. Thanks for this info.
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Old 01-11-2013, 07:29 PM   #5
UVRUGBY
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Member#: 343303
Join Date: Jan 2013
Chapter/Region: RMIC
Location: Utah
Vehicle:
2008 Impreza 2.5
Silver

Default

Quote:
Originally Posted by KartRacer3 View Post
Welcome! All 08+ impreza's have no rear sway bar so thats a good place to start. You can use any 08+ wrx or Sti rear sway bar for a cheap upgrade-you can find some of them in the classifieds for cheap. As for the front sway bar, our cars are different than the wrx/sti so you either can leave it stock or upgrade to rallitek's/whiteline's swaybars. Theirs currently a front and rear swaybar combo from rallitek for sale in the classifieds right now! If you plan on swapping out your suspension with coilovers or a spring/strut combo then you have a lot of options.
All 08+ wrx suspension mods (minus the front sway bar) will fit our cars. Coilovers offer a quick and easy installation but may cost more for the better quality ones. A spring/strut combo may be cheaper but sometimes can have the same quality as that of upper end coilovers minus a few adjustable options such as height adjustability. Personally I have Koni Inserts for the front struts and koni replacement shocks paired with RCE yellow springs and I love it. I have dampening adjustablity, so when Im just cruising around town I can set them to full soft but when I head to the mountain twisty's I can set them to full stiff and they feel just as stiff or pretty close to my bro's kw v3's on full stiff.

As for exhaust, we are pretty limited. To retain as much power or make as much as you can (its really not a lot), it has been preached that the optimum exhaust sizing is 2.25-2.5". You can easily goto a custom exhaust place and have them fab you something up for fairly cheap but make sure to check your local state laws if you want to stay legal. For simple cat-back exhausts you can purchase a few different styles but the only fitment that you will find anything under will be for 08-10 wrx fitment (single exit exhaust on passenger rear side). If you click on this link you can find a few of them here but be sure to look at the hatchback fitment: http://www.rallysportdirect.com/2008...t-Back-Exhaust

A few good places to look at these products/prices are listed below:
1) Rallysportdirect.com-has nearly every brand you can think of with competitive prices
2) http://shop.bostonmotorsports.com/ : These guys are also a vendor here on nasioc, I love their customer service and have the best prices in my opinion!

By the way you do not need a front strut bar for any 08+ model as the strut towers are much stronger than previous generations.
If I were you I would go roughly in this order:
Rear sway bar>Exhaust>New tires>Coils/Strut&spring combo

Also if you look on the 08-10 2.5i thread in the impreza section their are a lot of other good examples of what people do suspension wise. I hope this helps you somewhat and if you have any more questions feel free to pm me or even just post here!

Thank you good sir.
i look into suspension parts, and see all these all parts I didn't ever have to think about with the modding of my other vehicles, we just strut tower/sway bar, coilover and go. But, there is way more suspension upgrages to do with subies. thank you sir.
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Old 01-11-2013, 07:47 PM   #6
KartRacer3
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Join Date: Dec 2010
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Location: Norcal
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2011 2.5i prem pckg
SSM

Default

Quote:
Originally Posted by UVRUGBY View Post

Thank you good sir.
i look into suspension parts, and see all these all parts I didn't ever have to think about with the modding of my other vehicles, we just strut tower/sway bar, coilover and go. But, there is way more suspension upgrages to do with subies. thank you sir.
No problem man. Also if you find your brakes to be a bit mushy or soft, you can upgrade your front rotors the larger wrx rotors by simply getting the wrx caliper bracket, swap out your current bracket and rotors with the new wrx bracket and rotors. The larger rotor will help but to get a very firm feel, upgrade your brake pads (the stock ones are terrible) along with your brake fluid. If thats still not enough, get a brake master cylinder brace for a very firm pedal feel.
It's a lot to take in and theirs so much aftermarket parts it really is surprising but after modding my 2.5i after only two years of ownership it never really ends hah. Best of luck to modding your new impreza!
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Old 01-12-2013, 09:16 AM   #7
UVRUGBY
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Member#: 343303
Join Date: Jan 2013
Chapter/Region: RMIC
Location: Utah
Vehicle:
2008 Impreza 2.5
Silver

Default

Quote:
Originally Posted by KartRacer3 View Post
No problem man. Also if you find your brakes to be a bit mushy or soft, you can upgrade your front rotors the larger wrx rotors by simply getting the wrx caliper bracket, swap out your current bracket and rotors with the new wrx bracket and rotors. The larger rotor will help but to get a very firm feel, upgrade your brake pads (the stock ones are terrible) along with your brake fluid. If thats still not enough, get a brake master cylinder brace for a very firm pedal feel.
It's a lot to take in and theirs so much aftermarket parts it really is surprising but after modding my 2.5i after only two years of ownership it never really ends hah. Best of luck to modding your new impreza!

now see, I didn't even think about upgrading the brakes cause I was unaware of this, I thought they used the same rotors and what have you from the NA to the WRX. But, for great info.
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Old 01-12-2013, 11:50 AM   #8
Bluefoton
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Join Date: Feb 2007
Chapter/Region: E. Canada
Location: Quebec, QC
Vehicle:
2008 2.5i-hatch -
now with a HID retrofit

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To add a few things on top what KartRacer3 said, new tyres will probably yield the biggest handing difference, stock ones are rather horrendous. Conti DWS are - IMHO - an an excellent and not-too-expensive choice.

Brakes - I found OEM to meet all my needs, auto-X included.

Exhaust - I put a 08-10 WRX catback. Direct bolt on, not much difference in power or sound, but the tip fits better. There is a little difference in piping diameter, and a barely throatier sound. Probably the cheapest and easiest exhaust upgrade (link below).
http://lichtwald.com/?p=72

Suspension... well I went the other way around, and raised it by 1". Snow and all that

Random aesthetical mod: you can replace part of the stock centre console - the part around the shifter, and little storage space in front - from dull black/beige to cool silver (Subaru did it in 2009):



vs

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Old 01-12-2013, 12:06 PM   #9
UVRUGBY
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Location: Utah
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Silver

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Bluefoton, greatly appreciate the info. I am curious to if you lifted it that 1" with the outback XT stock shocks? and the tires and everything are in the making, I already have thoughts on thoughs

Thanks for the exhaust link/info, much help. I am just trying to find some stock wrx hatch exhausts. pretty difficult to do right now. lol
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Old 01-13-2013, 10:25 AM   #10
Bluefoton
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now with a HID retrofit

Default

Nah, I got 1" spacers. The other option for a lift are Forester (NOT outback) struts, but then you're gaining about 2" if not more. Depends on your need and how much of a Tonka truck look you're willing to accept. If you head to dirtyimpreza forums, you'll see a bunch of maniacs lifting their cars there
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Old 01-13-2013, 10:53 AM   #11
UVRUGBY
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Join Date: Jan 2013
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Location: Utah
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2008 Impreza 2.5
Silver

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lol, na, I don't need to cry because cars are being destroyed. it is just like the cady's be lifted and put on 25's. facepalming disappointments.
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Old 01-18-2013, 05:09 PM   #12
UVRUGBY
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Silver

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Quick question. these are looking like the same part, Which they should be.
But, there is like a $189 difference.

This one- http://www.infamousperformance.net/s...za-2.5i/Detail gives me info on what is provided and can see the reason why it is priced at what it is.

This one- http://shop.bostonmotorsports.com/Pe...WRX_p_621.html doesn't give info on what is provided, and makes me curious to if the reason it is cheaper is because it doesn't come with-
-Subaru Mounting Brackets
-Perrin Swaybar Bushings
-Perrin Rear Swaybar Endlinks

and Im getting that right?
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Old 05-30-2014, 08:52 AM   #13
Deanjrhan
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About the exhaust topic .. Would an aftermarket wrx exhaust fit the 2.5i and work?
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Old 05-30-2014, 09:30 AM   #14
Bluefoton
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Join Date: Feb 2007
Chapter/Region: E. Canada
Location: Quebec, QC
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now with a HID retrofit

Default

Since the WRX exhaust is a bolt-on to the 2.5i cat, any bolt-on WRX aftermarket will also mate with the 2.5i..
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