Fuel Pressure Regulator

From WWWIKI

Fuel Pressure Regulators:

  • M40/M42B16/18: 3.0 bar
  • M20B27: 2.5 bar
  • M20B20/23/25: 3.0 bar
  • M50/M52B25/28: 3.5 bar
  • S50B30/32, S52B32: 3.5 bar

A plug-in upgrade for the M20 fuel rail is the 0280160263 Porsche regulator, which is 3.5 bar.