good VNT upgrade for a K14
good VNT upgrade for a K14
i would look at a GT2359V or a GTB2260VKLR off of a OM642. they are both the right size for a 606 making a bit more than stock power and are a modern Garrett that should spool quite fast. i have heard the the 2260 can support ~250 ish maxed out but with it being a GTB series and not too big should light right around the stock turbo or sooner.