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sluflyer06 (not verified)    January 28, 2020 - 12:46PM

In reply to by Ken (not verified)

Sorry but your history is wrong, they never "switched" to cast pistons, the 2.5L never had them, and neither did the 2L wrx's in 02-05. It was never Subaru's plan to use the EJ257 in the STi in US/Aud markets but they were unable to get the EJ207 to pass emissions during cold start because of the forged internals, so they went with the 2.5L.

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