Alloy wheel gurus needed

Discussion in 'Subaru Impreza WRX Help & advice' started by PeteRA, May 13, 2019.

  1. 1509joe

    1509joe V-Limited Member

    From a previous post I wrote.

    Most wheels require ET48 or less to fit over Brembos. The size of the P-WRC1 Prodrive rims fitted to the P1 where ET53 which will not fit over the Brembos. The same rim is (was) available in ET46 which will fit over Brembos. Do not go over 7 1/2 inch rim cause chances are you will run into clearance issues.

    Now we'll add a bit 215/35/18 fit on an STI a WRX you MIGHT get away with 225/40/18 or even 225/45/17 cause of the higher springs.
    I have run 225/45/17 on a WRX with no rubbing (P-WRC1 wheels ET53) but you won't get away with it on an STI you have to drop a size 225/40/17 or even 215/40/17 for peace of mind.
    Just a side note 215/35/18 are getting hard to get in a decent tyre.

    The added bit is all with standard Subaru four pots.
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  2. asperformance

    asperformance Site Supporter

    oop north
    Just to clarify its the inner wheel design / spoke clearance that dictates caliper clearance hence why newage STi's run ET53 17" wheels as std over Brembo's.......
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  3. benji

    benji V-Limited Member

    When my car was lowered to much when I first put the coilovers on pre setting up. The stock 225/45/17 Sti wheels where touching the coil over perch at the rear so I lifted till was clear enough but I’d like to go 18x8 revo and worry they won’t clear the perch unless lifted high back to stock level again.
  4. sc86

    sc86 V-Limited Member

    215 45 17 is perfect - 17 x 7.5

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