Quote:
Originally Posted by seanwrxwagon
Some small differences to note. The 04 and maybe 05 have a different tourque split than the 06-07. The wheel stud spacing is different after 04. The 07 have a revised turbo with a more efficient wastegate design to prevent boost creep (VF43).
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maybe the wastegate was designed better, but subaru mouthed up when it came down to the pill. doesn't anyone remember?
CobbTuning.com - Service Bulletin: 07 WRX/STi Overboosting with Catless Exhaust