Specifications

Even though below listed models share the same engine the structure of these turbochargers are slighty diferrent. Order turbocharger according to your vehicle.

Stage 2 (HTD2872):

• Upgraded bearing system;
• CNC machined compressor housing;
• CNC machined turbine housing;
• OEM variable geometry nozzle;
• reinforced bigger machined from the solid compressor wheel - 50/72mm;
• bigger turbine wheel - 51/49mm;
• Flow bench adjusted;
• Balanced on VSR;

Power range: up to 400HP

Stage 2 (HTD2872BB):

• dual ceramic ball bearing;
• CNC machined compressor housing;
• CNC machined turbine housing;
• OEM variable geometry nozzle;
• reinforced bigger machined from the solid compressor wheel - 50/72mm;
• bigger turbine wheel - 51/49mm;
• Flow bench adjusted;
• Balanced on VSR;

Power range: up to 400HP

Stage 3  (HTD3073BB):

• dual ceramic ball bearing;
• CNC machined compressor housing;
• CNC machined turbine housing;
• Custom variable geometry nozzle;
• reinforced bigger machined from the solid compressor wheel - 54/73mm;
• bigger turbine wheel - 58/54mm;
• Flow bench adjusted;
• Balanced on VSR;

Power range: 420+HP

Stage 4 (HTD3279BB):

• Big dual ceramic ball bearing;
• Enlarged shaft (6mm diameter ) and turbine wheel;
• CNC machined compressor housing;
• CNC machined turbine housing;
• Custom variable geometry nozzle;
• Reinforced bigger machined from the solid compressor wheel - 56/79mm;
• High flow design turbine wheel - 58/56mm;
• Flow bench adjusted;
• Balanced on VSR;

Power range: 470+HP 

Stage 5 (HTD3379BB):

• Big dual ceramic ball bearing;
• Enlarged shaft and wheel diameter 7mm;
• CNC machined compressor housing;
• CNC machined turbine housing;
• NEW design custom variable geometry nozzle with 14 nozzle blades;
• reinforced bigger machined from the solid compressor wheel - 56/79mm;
• High flow design turbine wheel - 62.8/56mm;
• Flow bench adjusted;
• Balanced on VSR;

Power range: 500+HP

Please note that with upgrade turbocharger installed you will need engine tuning. 

Stage 3-5 turbochargers should be used only for professional use. Upgraded intake system as well as performance downpipe and custom software is required in order to achieve the best results.

Compatibility list

BMW E9x (325d / 330d) version:

BMW E6x (525d / 530d / 730d) version:

BMW E7x (3.0d) version: