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Old 09-30-2022, 04:24 PM   #6551
flyinformula
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Does anyone know if a stock 2018+ STI type RA block would be legal in a 2004 STI running in STU class? Looking to refresh the stock motor and hoping just to mainly gain reliability.
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Old 10-01-2022, 01:06 AM   #6552
justint5387
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2006 WRX STi

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Quote:
Originally Posted by flyinformula View Post
Does anyone know if a stock 2018+ STI type RA block would be legal in a 2004 STI running in STU class? Looking to refresh the stock motor and hoping just to mainly gain reliability.
I am afraid you cannot. A new oem shortblock for a 2004 sti would be the easiest way.
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