The Toyota Supra 2JZ turbocharged engine is one of the platforms we rebuild here at Synergy Engines .   We do not offer core exchanges, and will rebuild your supplied engine core for the build.    This engine can be rebuilt with many off the shelf performance parts, but is lacking in the OEM parts availability.  From mild to wild, the 2JZ engine is one of the best import platforms on the market.     Full JDM Swap Cores are available, and make great performance rebuilds.  No OEM Pistons Available.