USDM STi twin scroll turbo or not??
I've been told that the STi uses a twin scroll VF39, but I've also been told that only the 37 and 38 were twin scroll units, standard bearing and roller bearing, respectively. Anyone 100% in either direction. I'm confused. Also thought they used the 34 on the JDM v7 STi, but apparently it was only used on the WRX Spec C RA(???). So many turbos, so few brain cells.
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Last edited by TampaWRX; Jul 1, 2003 at 12:08 PM.