After continuous operation to the right of the best efficiency point, the operator injected a drag reducing additive (DRA) to increase the throughput of the 3 x 50 % units. The DRA lowers the system resistance allowing additional flow to be pumped to shore. The cost of injecting DRA was in excess of 500,000 USD per calendar month. Sulzer Pumps were able to retrofit the existing pumps with high-flow, high-efficiency cartridges, reclassify the drive motors and provide service personnel to manage the change out. The exchange took less than four days thus minimizing the scheduled loss of production. Thanks to the retrofit, an additional total flow of 20,000 barrels per day was achieved.