Mitsubishi TD04L turbocharger from a 2003 Subaru WRX. Low milage, awesome nearly-new condition. Was pulled from a new car by a kid that was upgrading. No play in the compressor wheel.
Would make an excellent power booster for a ~2.0L challenge car, or find another and twin-turbo that junkyard V8.
$100 shipped to a $2010 Challenge participant! I'm in Louisville, KY.