5 mm bore size results in a displacement 3996 cc94 mm bore size results in a displacement 4039 cc94

resulting in reduced engine workload and increased horsepower

5150 AutoSport Head Gasket & Head Stud Kit for BMW S14

- Both "Hot Side" Charge Pipes

high-performance builds

Stewart High Performance Water Pump, BMW M52TU / M54 Yaris 5 mm bore size resultsThe Stewart High Performance Water Pump is a direct replacement pump designed to fit BMW M52TU M54 engines with no modifications necessary. That includes accepting the Factory Fan Clutch. The front of the Stewart High Performance Water Pump is stock appearing, but is twice as efficient than OEM water pumps. Features Include: Up to 20% increase of water flow over stock pump Twice as efficient as factory pump Much less parasitic drag than other pumps