The PURE Turbos 900 upgrade for BMW F90 M5 is the only upgrade for these engines proven to produce substantial power gains. All the fastest M5s in the world run PURE turbos.
BMW F90 M5
WARNING: May contain items that are found to have compounds and/or chemicals known to the State of California to cause cancer, birth defects, and reproductive harm.
For more info, please visit https://www.P65Warnings.ca.gov.