Need advice on a caliper and rotor upgrade for my 12'
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This is a discussion on Need advice on a caliper and rotor upgrade for my 12' within the Suspension & Wheels forums, part of the Tech & Modifying & General Repairs category; I am sorry if this question has been asked a million times, but I am new to the site and ...

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    Need advice on a caliper and rotor upgrade for my 12'

    I am sorry if this question has been asked a million times, but I am new to the site and new to WRXs. I have a 12' hatchback base model and would like to upgrade the brakes to an "STI" standard. I realize that my 5x100 bolt pattern would prohibit a straight swap from an 11'-13' STI. However, I have been told that 04'-13' STI fronts will work while 04'-07' rears will need a bracket. 08' rears are a direct bolt on. Is any of this correct, or am I totally off? From what I have seen, a new Brembo package on all four wheels would be very expensive somewhere around $5K. Any info on this would be very helpful. Thanks in advance.

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  3. #2
    zax
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    Fronts will bolt to the knuckle. Adaptors are available for the rears. I'd suggest performing rotors/pads/fluids and SS brake lines first. If you aren't happy, then consider the calipers.
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    OMG WTF MainFrame's Avatar
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    Honestly, I would look at it as a good opportunity to upgrade hubs and bearings at the same time. There are a lot more (better) wheel options for 5x114, and the wheel bearings that go with the 5x114 hubs are a good deal better.. or at least they were on the older year models.

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    Registered User W_R_XTC's Avatar
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    I did a caliper swap from an '06 TR onto my 2012 wrx. direct bolt up, no need for rotor replacement, and gives you 4 piston front and 2 piston rear. I know they are no sti brembos by any means, but still a noticeable gain.

  6. #5
    Registered User JimboWRX's Avatar
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    You can put on the 2004+ STI Front and 08+ STI Rear Brembos on a 2011+ WRX with virtually no modifications. They bolt right up to the existing knuckles (no brackets required). You will also need a set of front and rear STI rotors drilled for the 5X100 pattern. KNS Brakes sells dual drilled pattern STI rotors.

    Okay, so there's one small modification: To allow the rear rotor to clear the dust shield, the dust shield can either be trimmed or removed. This is the only real modification required to make the upgrade.

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