Unlock power safely with Performance Valve Springs OM604, OM605, OM606 » tuned by Benz Injection. These reinforced springs are crafted to withstand extreme cylinder pressures and heavy boost applications common in tuned Mercedes diesel platforms. With improved seating force and reduced valve flutter, they deliver reliable power delivery, better airflow precision, and long-term durability even in racing or heavy towing builds. The perfect upgrade for enthusiasts pushing serious boost.