The Nissan SR22 Engine kit comes complete with a full Forged Piston Kit, Forged Connecting Rods, and Forged "Full Counter" Crankshaft. The piston kit comes complete with piston rings, pins, and circlips. The connecting rods, crankshaft, and pistons are all specifically made for this application. To buy each of these pieces separately would cost well over $5k.
