Upgrade Turbocharger Stage 3 Ball Bearing Turbo System for BMW E6x (525d / 530d 730d) - HTD3073BB/351 - 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: Model Year Engine code Power (KW / HP) Garrett nr. OEM nr. BMW 325 d (E90/E91/E92/E93) 2007 - 2010 M57306D3 145 / 197 758352-5026S 758352-x 11657796312 BMW 330 d (E90/E91/E92/E93) 2005 - 2007 M57306D3 170 / 231 758352-5026S 758352-x 11657796312 BMW 330 xd (E90/E91/E92) 2005 - 2007 M57306D3 170 / 231 758352-5026S 758352-x 11657796312 BMW E6x (525d / 530d / 730d) version: Model Year Engine code Power (KW / HP) Garrett nr. OEM nr. BMW 525 d (E60 / E61) 2005-2007 M57N2 170 / 231 758351-x 657794260 BMW 525 d (E60 / E61) 2007-2010 M57D30UL 145 / 197 758351-x 657794260 BMW 525 xd (E60 / E61) 2005-2007 M57N2 170 / 231 758351-x 657794260 BMW 525 xd (E60 / E61) from 2007 M57N2 173 / 235  758351-x 657794260 BMW 530 d (E60 / E61) 2005-2007 M57N2 170 / 231 758351-x 657794260 BMW 530 d (E60 / E61) from 2007 M57N2 173 / 235  758351-x 657794260 BMW 530 xd (E60 / E61) 2005-2007 M57N2 170 / 231 758351-x 657794260 BMW 530 xd (E60 / E61) from 2007 M57N2 173 / 235 758351-x 657794260 BMW 730 d (E65 / E66) 2005-2007 M57N2 170 / 231 758351-x 657794260 BMW 730 d (E65 / E66) from 2007 M57N2 173 / 235 758351-x 657794260 BMW 730 ld (E65 / E66) 2005-2007 M57N2 170 / 231 758351-x 657794260 BMW 730 ld (E65 / E66) from 2007 M57N2 173 / 235 758351-x 657794260 BMW E7x (3.0d) version: Model Year Engine code Power (KW / HP) Garrett nr. OEM nr. BMW X5 3.0 d (E70) from 2007 M57306D3 173 / 235 765985-x 11657796314 BMW X6 30 dx (E71) from 2008 M57306D3 173 / 235 765985-x 11657796314