Experience unmatched performance with a premium s54 engine built for enthusiasts who demand high-revving precision. Known for its naturally aspirated power and iconic sound, the S54 delivers incredible throttle response and track-ready strength. Each unit undergoes compression testing, VANOS inspection, oil-pressure verification, and detail cleaning to ensure flawless operation. Perfect for E46 M3 and Z4M models, this engine provides exceptional torque, smooth acceleration, and long-term durability. Sourced from well-maintained vehicles and backed by warranty coverage, the S54 is ideal for restorations, swaps, or performance rebuilds. Enjoy proven reliability, fast shipping, and expert guidance with every purchase.