Adjustable fuel pressure regulator for all 2.2 Turbo built from 1988 and up engines.  
 
Fits:   Turbo II, Turbo III, Turbo IV, and Maserati 16v.  Also fits 2.5 Turbo I engines as well.  If your car has a "slip on" return side barb coming off your factory FPR, then you'll need a fitting, just email us and we'll get you set up.
 
This regulator allows you to adjust your fuel pressure from a low of 40psi to as high as 65psi (base).  Generally speaking you don't want to go much lower (or higher) than those ranges for your base (static) pressure.   RDI recommends setting your base pressure at 50-55psi with the vac line connected, depending on your setup.