The M276 twin-turbo V6 is a brilliantly engineered motor, but pushing your W205 C43 into extreme big-turbo territory demands a fully reinforced bottom end to handle monumental cylinder pressures. Safeguard your block against intense forced induction with high-strength Forged Pistons and heavy-duty Forged Connecting Rods. Lock the rotating assembly down firmly using high-tensile Uprated Engine Bolts (ARP) and minimize internal friction utilizing race-specification Performance Bearings (Conrod & Mains). Maximize cylinder head airflow with Performance Camshafts, and complete your ultimate engine build with our broad selection of Misc Engine Parts engineered for long-term motorsport reliability.