GR Platform Basic Mods

Discussion in 'Modifications And Maintenance' started by predavore, Jan 7, 2009.

  1. predavore
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    predavore Well-Known Member

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    Alright, I know there aren't very many 08's on here. But we might have someone who has some answers...


    I want to put my Subaru 4 pot calipers on my 08. I have Frozen Rotors as well. My question is, will this bolt right up like it did on my 02? Will the stock rims clear the 4 pots?

    Subaru Pink Springs... I've called in and found that there is no camber kit sold for the installation of these springs. I'm guessing aftermarket camber bolts will do. Anything else? Fronts have excentric bolts, rears do not.

    TPMS.. Not that I care about the light on the dash, but running wheels without the transmitters will be ok... right?

    End links... Along with my lowering springs, I'd like to throw on some solid end links. Recommendations? Should I grab a Subaru sway bar at the same time?

    SPT Exhaust... Anything needed here? I'm guessing the gasket will be fine. Everything else will bolt up.


    I'm sure this list will grow. I just wanted to start here.
     
  2. Dream
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    Dream Well-Known Member

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    Calling subytek!
     
  3. Paul Revere
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    Paul Revere BANNED

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    Why SPT exhaust, I mean I like mine alot but isn't the GR sedan one a pretty penny?
     
  4. Dream
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    Dream Well-Known Member

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    He's trying to keep his factory warrenty.
     
  5. predavore
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    predavore Well-Known Member

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    They all are...
     
  6. idget
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    idget Want to pokéman? PM ShortytheFirefighter Staff Member

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    Whiteline has a rear camber adjustment bushing available:
    http://www.turninconcepts.com/product_info.php?cPath=1_9_7_481_1078_1079&products_id=614

    Fronts retain the same strut design so the same bolts used in previous years should do.

    Whiteline makes 2008 specific solid endlinks for the rear (also sold by TIC). Not sure if the front design changed on the wrx.


    I don't know how closely the GR wrx relates to the GR sti, but I've been doing a bit of set-up research for an 08 STI.

    From what I'm reading, for the STI atleast, the stock strut valving and suspension travel are such that even mild drops and increases in spring rates are hurting drivability and performance (riding on bumpstops even with a mild drop from something like a prodrive or pink spring). Don't know if this is true or whether it applies to the wrx as well, and I haven't personally experienced it, but it may be something worth looking into. Maybe stock 09 springs if you're looking for a performance bump?
     
  7. Soupboy
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    Soupboy Well-Known Member

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    Can you transfer the TPMS sensors to your aftermarket rims? I know we can do that on our Honda.
     
  8. predavore
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    predavore Well-Known Member

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    Not sure I really want to. If anything, I'd get a set of aftermarket ones. The problem is the hassle of moving the TMPS pieces. I have the stock 17s, aftermarket 17s and aftermarket 18s. They all have tires and I would like to be able to just switch between them whenever I want without dismounting/mounting tires.
     
  9. Bullwinkle
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    Bullwinkle Well-Known Member

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    You can run without the TPMS sensors without problem (although you'll have the light on the dash lit all the time).

    You can mount them on other wheels, but I think it costs a bit to get them recalibrated.
     
  10. greenwar
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    greenwar Well-Known Member

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    I got an 08 - so I will answer some of your questions:

    >>I want to put my Subaru 4 pot calipers on my 08. I have Frozen Rotors as well. My question is, will this bolt right up like it did on my 02? Will the stock rims clear the 4 pots?

    No clue! Like I mentioned earlier, the 2 pot LGT brakes on the WRX are not bad. I haven't been to a track day to see how quickly it fades.

    >>Subaru Pink Springs... I've called in and found that there is no camber kit sold for the installation of these springs. I'm guessing aftermarket camber bolts will do. Anything else? Fronts have excentric bolts, rears do not.

    I am going to get these springs installed this thursday. I will also get a mild alignment done this saturday. I didn't get any camber bolt or kit. So may be that will be a surprise. I will report back on this on sunday.

    >>TPMS.. Not that I care about the light on the dash, but running wheels without the transmitters will be ok... right?

    I have snows on the car now without the TPMS. There is just a light on showing TPMS sensors aren't reading anything. I don't think it will cause your car to malfunction however.

    >>End links... Along with my lowering springs, I'd like to throw on some solid end links. Recommendations? Should I grab a Subaru sway bar at the same time?

    Rallitek endlinks may be? They are cheap and it seems they make good stuff. Otherwise, whiteline or perrin may be. For sway bars, front sway bars are apparently the same as LGT front sway bars. The rear ones apparently are somewhat different for the sedan. For example. cobb rear sway bar is not guaranteed to fit the sedan as it's intended for the wagon/Hatch.

    >>SPT Exhaust... Anything needed here? I'm guessing the gasket will be fine. Everything else will bolt up.

    I have this on my car. It sounds great btw! I would recommend getting a subaru exhaust donut gasket . The SPT CBE is completely compatible with the stock downpipe, hangers and bolts right on.


    I hope this helps!
     
  11. TSTRBOY2004
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    TSTRBOY2004 Well-Known Member

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    yes you could but depending on whether they are held with bands or not... you would need new bands...

    or if you wanted to do it right you could spend $$$$$$$$$$ and get 4 sensors.... ha ha hah ... have them in both sets...
     
  12. driftin240
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    driftin240 Well-Known Member

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    The 4-pot's will bolt right on. Do it to it! Just make sure if you have winter tires/wheels that they clear the calipers. Obviously if you had them on your old car, you had tires/wheels that did clear.

    You can keep using your stock rotors.

    As for the springs, the fronts will have camber bolts, and for just installing springs...you should be able to keep the alignment in spec without other parts. The rear should stay within spec as well, but will probably be sitting on the very (-) side of spec. Carrying heavy loads in the trunk will probably put you over the spec if you are already on the edge.
     
  13. driftin240
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    driftin240 Well-Known Member

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    TPMS sensors can be purchased from Tire Rack for cheaper than you can get them from the dealer. You just need the right mhz sensor. If you tell them you have an 08 WRX they should know what one you need.
     
  14. 03subyR
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    03subyR Well-Known Member

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    SPT exhaust comes with everything. No gaskets needed. I have Cobb springs without camber and no problems there. I think it drops 1.3" and 20% siffer than stock.
     
  15. wall of tvs
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    wall of tvs Well-Known Member

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    Stock '08 wheels will clear the '06-07 4 pot brakes. Subytek has 4 pots on his '08 and I am running '08 wheels on my '06.
     
  16. AWDimprezaL
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    AWDimprezaL has more posts than you

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    09 wheels are hot. ben has an 09 tom.
     
  17. Paul Revere
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    Paul Revere BANNED

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    Whats the difference? The color?
     
  18. AWDimprezaL
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    AWDimprezaL has more posts than you

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    Yeah, it goes from your traditional silver like wrx wheel, to an awesome gunmetal color.
     
  19. 1_sic_rex
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    1_sic_rex Well-Known Member

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    Pm sent..... Yes, you can run without sensors at all without any damage to the car. Yes, your light will be on. You can also purchase aftermarket sensors and use them in different sets of wheels. You will just need to reset the system EVERYTIME you swap them out. If you go to the dealer to have this done, most of them will charge for this.
    The sensors are expensive if you purchase them from the dealer.

    I deal with this issue everyday at work and believe me it is so much better to get the extra sensors because if you are anything like me, you wont be able to stand any extra light on your dash.

    I also have access to the equipment needed to reset and service TPMS as well as any discount tire.
     
  20. predavore
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    predavore Well-Known Member

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    Exhaust was very straight forward. No problems there. The only thing... it's not 3" anymore. :( But it is larger than stock.
     
  21. predavore
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    predavore Well-Known Member

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  22. predavore
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    predavore Well-Known Member

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  23. predavore
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    predavore Well-Known Member

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    How did the install go? Did you do it? Pics? Comments/Tips?
     
  24. predavore
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    predavore Well-Known Member

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    Would someone post up a picture of their 08-09 front drivers side wheel when turned all the way to the left? I want to see what the camber looks like when turned on a STOCK setup.
     
  25. greenwar
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    greenwar Well-Known Member

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    Sorry, I didn't see your post earlier. Scuba Steve installed the springs for me. Installation didn't seem that hard, but I didn't do it myself. :D

    My stock setup looked like it had some positive camber in the front wheels :D

    My front car now has -.6 degrees on negative camber and somewhat aggressive toe. The aggressive toe in helped with the wandering on the hwy. Jeff couldn't go with any higher negative camber with the stock setup without too much toe in.

    I am satisfied with my setup now but the SPT springs are indeed soft. I am longing for a slightly stiffer setup now.

    I will try to get the picture for you, even though my setup is not stock anymore.
     
  26. predavore
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    predavore Well-Known Member

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    Still haven't done the brakes...

    But I did throw the Agency Power short shifter and Gimmick bushing in a couple weeks ago. It's pretty nice. Throw is definately shorter, but not side to side. The Gimmick bushing is solid plastic, and passes more tranny noise through to the cabin. But it does shift nice!
     
  27. predavore
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    predavore Well-Known Member

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    With the cold weather, I'm starting to hear some more noises from the suspension. Had it in for an oil change, they tightened the end links up. But that didn't help. It could be one of a few things. The H-brace, the bushings on the Perrin sway bar, or bad struts. I just have to get it in the air some time and grease the bushings and see if that helps.
     
  28. predavore
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    predavore Well-Known Member

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    Has anyone else read that the STI struts fit into the WRX? (I thought I saw that somewhere)
     
  29. predavore
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    predavore Well-Known Member

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    Does anyone know if the Hatchback struts fit into a Sedan? I'm looking into a set of 09-10 struts. Most of them are out of the Hatch.
     
  30. predavore
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    predavore Well-Known Member

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    FYI, I had Brian check the part numbers for 09-10 struts hatch and sedan... they are the same. Everything I read shows the 09-10 struts require the 09-10 top hats. So anyone replacing 08 struts will need the whole assembly (minus the springs if you are going aftermarket).
     
  31. MNGman
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    MNGman Well-Known Member

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    I am new here, but also a member of NASIOC. I have an 09 WRX. I am assuming your struts have blown? This has been a common issue with the 08+ models and lowering springs. Including the STI pinks. If you are interested in upgrading, GTWORX is in the process of having Bilstein design model specific struts/shocks with a lowering spring option. These are being developed just for the 08+ WRX and valved to work with stock springs or the new stiffer springs rated just for the new Bilstein suspension parts. These are looking to be released sometime in May (fingers crossed, I have mine on order!)
     
  32. predavore
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    predavore Well-Known Member

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    I'd love to get Bilsteins. But for the $$$, 2010 stock struts were a better solution for me since I already have the STI/SPT Pink springs. Post up more info on those when they arrive.
     
  33. predavore
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    predavore Well-Known Member

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    Here is a little comparison for you between the 2008 struts/springs and the 2010 stuts/springs.

    Rear
    [​IMG]

    [​IMG]

    There is noticable (and measurable) size difference in the springs. The 2010 springs are shorter (same length as the STI pinks).

    (I hate photobucket...)
     
  34. retreif
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    retreif Well-Known Member

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  35. Shane86
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    Shane86 Well-Known Member

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    You know, i've always wondered why someone didn't do something like that... personally i thought you would have to build something more substantial for the pressures, but i suppose if your fine with it not being removable without some hammer work, that's a freaking brilliant idea.

    i suppose a few hose clamps around the seat rails would keep a little pod like that quite well secured.
     
  36. Ninjaplease!
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    Ninjaplease! Well-Known Member

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    I believe this will not work for Subarus because the sensors have to be spinning in order for them to read correctly. There was a thread about it here, or on Nasioc about it a while ago, I cant seem to find it right now.
     
  37. predavore
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    predavore Well-Known Member

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    I'm thinking about getting the 4 pots on before the kid arrives. What kind of stainless steel brake lines are people running?
     
  38. predavore
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    predavore Well-Known Member

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  39. predavore
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    predavore Well-Known Member

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    Alright, anyone with an GR here running a tranny full of eXtra-s? I'm gonna swap out the fluid and want to know how you guys like it.
     
  40. ofspunk7
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    ofspunk7 Well-Known Member

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    Yes, Turbo Turtle helped me do mine about 5k ago (now @ 25k). I am happy with it so far.
     
  41. predavore
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    predavore Well-Known Member

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    Ok, who has Stage 1 or 2 on their MY08. I wand to know how things are holding up and what kind of power you are gaining. I'm not sure it's worth it yet. I'm getting OK gas mileage and the 08 isn't that bad to drive (power-wise). I have a panel K&N and SPT catback.

    What simple mods are being done besides the tune?

    Fuel Pump? BCS? DP?

    Anything else?
     
  42. MNGman
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    MNGman Well-Known Member

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    Just a note on the K&N filter. At DB Performance with back to back dyno pulls, I have seen the difference in a stock filter and a Perrin panel filter. The stock filter actually made better power. If you haven't gotten a custom tune yet, do this. I was able to get a bunch of power by just getting a custom tune in my 09.
    I am consistently getting 25-26 around the city and up to 28 highway. (3-4 mpg less in the winter)
    I'm sure Nuke can chime in on what mods are most beneficial. He has had his hands on a couple of the 08+.
    I'm still on the fence about a turbo-back system. I am having a hard time with the cost/reward of this.
     
  43. xluben
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    xluben Well-Known Member

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    For an 08 just get a downpipe and tune. After that just live with it until you decide you want to upgrade your turbo.
     
  44. Nuke
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    Nuke Well-Known Member

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    If you were to ask for my honest opinion, I would say Driver mod.
    But if you really want parts, a turboback and tune is nice.
     
  45. predavore
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    predavore Well-Known Member

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    Ok... so here is the question. Will the perch to top height difference cause extreme negative camber?

    Look closely (I know that the boots cover up all the important parts.) The 2008 rear strut seems to run the car higher (longer from the perch to the top of the threads). In return, the 2010 might lower the car farther. Resulting in the rear being lower and the camber being more negative.

    I'm running around -2 degrees of camber. That's the closest to 0 that I can get. I'm contemplating a new set of springs to bring the rear back up a bit. The other option is some uber expensive adjustable lower rear control arms. That or just new rear struts specifically for the 08.

    I've been switching out to wider tires over the last year and a half. I'm noticing more inner tire wear. Pretty sure that it's due to the negative camber.


    [​IMG]

    [​IMG]

    [​IMG]