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Old 10-15-2014, 12:32 AM   #56
08impreza2.5isport
Scooby Newbie
 
Member#: 369847
Join Date: Oct 2013
Location: Toronto, Canada
Vehicle:
2007 Legacy Spec.B
DGM

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There were 2 ej20k's, one shim over bucket and one shim under bucket. STI was the shim under bucket and wrx was the shim over bucket I believe. From what I remember, the wrx ej20k was just an updated ej20g. The wrx ej20k had a 7500rpm redline and STI ej20k was 8000rpm. Ej25d cams are very similar to ej20g cams and I believe the head casting is closer to the wrx ej20k.
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