Quote:
Originally Posted by LegacyRS
V5 & 6 JDM sti's had cast pistons, with the option for forged.
If the owner didn't tick the forged piston box it had cast pistons fitted.
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Agree ^
Quote:
Originally Posted by LegacyRS
I believe the RA's were the only JDM fitted with forged slugs by default in the GC's.
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The JDM STI RA had forgies, the JDM WRX RA had cast pistons
Quote:
Originally Posted by LegacyRS
Early V5 ADM had cast pistons but later v5 and all V6 ADM had forged slugs (and less boost/timing), we were the only market where this occured.
Mainly due to quite a number of V5's going boom on our best fuel (95Ron) available at the time.
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The best fuel, commonly available at the time was BP's Ultimate 98 RON. That's what my 99 drank and it was delivered before the Aus Spec V5/6 STi's.